Notifications
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Design created with a previous version of design engine |
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PIXls file being opened is newer than the current version of PIXls |
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Previous version of Design File |
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Old version of Design File |
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Both input and output parameters must be selected |
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Input and output parameters must be different values |
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Goal Seek failed to find a solution |
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Calculation error: Change input parameters |
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Identified value is less than the minimum limit |
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Identified value is above the maximum limit |
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Optimization failed: Change device and/or transformer selection |
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Optimization failed: Core effective winding area is too small for the calculated number of turns |
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Optimization failed: KP is below the minimum limit |
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Optimization failed: Duty cycle (DMAX) above maximum limit |
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Optimization failed: capacitance required for this power level (PO) cannot be found |
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Optimization failed: No PI Component found for the specified output power (PO) |
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Optimization failed: Do you want to review the "Best Fit" solution? |
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Minimum Bias voltage required |
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The UV turn-ON threshold value is too high |
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The OV shutdown turn-OFF threshold value is too low |
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No outputs specified |
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Input value is too high |
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Input value is too low |
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Foil winding requires use of margin tape |
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Output capacitor rated ripple current exceeded |
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Transformer windings may not fit in the winding window |
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Selected diode has no margin to its rated voltage. |
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Selected diode has insufficient margin to its rated current |
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Estimated clamp voltage is too high |
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Estimated clamp voltage is too high (DPA) |
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Total margin width exceeds the width of the bobbin |
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TVS Clamps are not recommended for power levels exceeding 20 W |
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Target clamping voltage is too low |
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Some of the specified tolerances could not be met |
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Some of the specified tolerances could not be met |
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Optimization failed to find a solution |
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Selected diode has less than 10% margin to its rated voltage |
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SI Units were changed, Transformer will be redesigned |
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Rated fuse voltage too low |
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Rated input fuse current is too low |
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Rated input fuse voltage is too low |
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Fusible resistor in use |
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Thermistor resistance too low |
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Thermistor current rating is too low |
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Input rectifier rated voltage is too low |
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Input rectifier rated current is too low |
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Calculated snubber cut-off frequency is too high |
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Voltage rating of snubber capacitor is too low |
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Snubber resistor power rating is too low |
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The heatsink selected can be inadequate |
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The X-capacitor discharge resistors are inadequate |
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Post filter resonant frequency is too high |
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Power rating of bias snubber resistor too small |
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Rated voltage of input capacitor is too low |
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Board thickness recommended at this power level |
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Cannot find suitable component in the current set |
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K-package power is based on IR reflow |
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Selected diode heatsink may get too hot |
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Clamp current cannot be calculated |
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Estimated clamp voltage cannot be calculated |
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Maximum operating flux density (BM) has been exceeded |
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Zener Clamp loss (PZ) is greater than 3 W and may overheat |
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Device may be too small for this power level (PO) |
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Device may be too small for this output power level (PO) |
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Peak DRAIN-SOURCE voltage exceeds device breakdown (BVDSS) |
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Peak current exceeds derated minimum current limit |
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The number of primary winding layers (L) is greater than recommended |
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Maximum duty cycle (DMAX) limit has been exceeded |
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Peak DRAIN-SOURCE voltage is within 20 V of device breakdown (BVDSS) |
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Transformer size may be too small for this power level (PO) |
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Peak flux density (BP) limit has been exceeded |
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Gap Length (LG) is smaller than the practical limit |
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Gap Length (LG) is larger than the practical limit |
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Primary circular mils per amp (CMA) is below the recommended minimum |
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CMA may be excessive |
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Peak flux density (BP) is less than 1000 G and is excessively low |
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Primary current density is greater than maximum recommended |
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Peak flux density (BP) is less than 100 mT and is excessively low |
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High output ripple current warning |
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Wire gauge (AWG) is greater than recommended maximum |
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Wire diameter (DIA) is less than recommended minimum |
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Wire outer diameter is greater than maximum |
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Over-Voltage (OV) protection is set too high |
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Bias voltage should be at least 8 V for secondary feedback |
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KI is less than 50% of the internal current limit |
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The value of RPL is too large |
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The working voltage of the RLS1 resistor can be too low |
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The working voltage of the RLS2 resistor can be too low |
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The working voltage of the RPL1 resistor can be too low |
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The working voltage of the RPL2 resistor can be too low |
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The power rating of the resistor is too small |
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Full load operating frequency has been reduced |
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Overload PO has been increased |
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Peak current may exceed device ILIMITMAX value |
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Peak primary current kept to safe level |
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Transient KP is less than minimum level |
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High flux density |
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Regulation tolerances do not account for drift and other effects |
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DCON is too small |
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Bias resistor value may be too large |
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The peak flux density is greater than 3200 Gauss (320 mT) |
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The primary wire gauge is less than the recommended minimum (DPA) |
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Dual output design |
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Low output voltage design |
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Winding wire exceeds 0.45 mm outer diameter (SI units) |
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Margin exceeded |
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Margin exceeded |
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Wire gauges thicker than AWG 24 not recommended |
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Wire size thicker than 0.55 mm not recommended |
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Safety violation |
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Safety violation |
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Safety violation |
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Safety violation |
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Transformer leakage inductance increased |
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Secondary "start" pin on Primary side |
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Secondary "finish" pin on Primary side |
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Secondary RTN pin on Primary side |
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Synchronization between parameters |
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Synchronization between parameters |
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Single negative output designs are not supported |
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Duplicated pin(s) |
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Part already exists in component database |
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Outputs below 2.5 V are not recommended to be used as the main outputs |
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Design contains custom components not present in the database |
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For language change to take effect please restart the application |
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Editing of the Component Library while designs are open |
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Peak power is less than continuous power |
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No database part found |
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The opened design uses an existing component set but its contents differ |
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Component(s) in loaded design is different from those in the component library |
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Changes have been made to the component library/set |
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Confirm the permanent removal of a component set |
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Unable to configure equal outputs as AC or DC stacked |
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Unable to configure more than one DC stacked output |
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Unable to configure single output as AC(DC) stacked |
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Unable to configure only one output as Common RTN |
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Not enough turns on main output to create stack combination with main output |
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Unable to configure main output as DC stack base |
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Unable to configure more than one positive output as Common RTN |
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Unable to configure DC stacked output as AC stack base |
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Unable to configure positive output as Common RTN if stack exists |
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Actual number of pins available on bobbin is not enough to build the transformer |
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Width of margin tape exceeds available bobbin width |
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Margin tape is too wide. Effective Bobbin width is less than 1 mm |
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For best EMI performance NFB should be set to the suggested value |
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Magnet wire is used in a non-margin transformer |
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Bias winding parameter is too small |
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RF2 resistor value is too small and may consume more power. |
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RF1 resistor value is too small and may consume more power. |
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RF2 resistor value is too big and may not provide bias for TL431 |
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RF1 resistor value is too big and may not provide bias for TL431 |
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RF3 resistor value is too large |
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Value of compensation capacitor CF1 is too small |
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Target crossover frequency is too high. |
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RF5 is too high |
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CF3 is too low |
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Optocoupler CTR is set too high |
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Estimated Phase margin is too low |
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Component sets can only be edited when there are no designs open |
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Unfreeze VIN on Feedback Components Dialog |
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Soft finish circuit capacitor value is too small |
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Rated voltage of optocoupler is too low |
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Crossover frequency is too high and cannot be calculated |
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BOM Uploading page opening |
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KP is too low |
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KP is too high |
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CMS is low (high Current Density) |
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High Current Density |
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Feedback current too high |
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Feedback pin current too low |
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RFB Resistors with 1% tolerance are recommended |
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RSENSE Resistor(s) with 1% tolerance are recommended |
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Rated Voltage of Varistor is too low |
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MOV not present |
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MOV Rated Current is too low |
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Rated voltage of resistor may be exceeded |
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Harmonic Limit Exceeded |
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Device current limit exceeded |
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Dissipation of RSENSE is too high |
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PI Device is too big for selected output power |
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Device too small |
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KP too low |
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LNK-PH-PL Output tolerance is too high |
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MOV Clamping Current too low |
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Output Voltage is too low |
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Feedback pin bypass capacitor not in database |
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Clamp capacitor not found in the database |
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The appropriate TVS diode was not found in the component library |
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RCD/RCDZ clamp not possible. TVS clamp used |
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RCD/RCDZ clamp not possible. TVS clamp used |
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Not enough clamp safety margin |
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Bias damping resistor not valid |
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RCD clamp design invalid |
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AROTE_ACT out of recommended range |
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Wrong SR FET Selection |
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Cannot find SR FET in database |
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VOUT pin voltage too high |
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VOUT pin voltage too low |
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Wrong VOUT-Pin transistor type selected |
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Wrong VOUT-Pin transistor Current Rating selected |
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Wrong VOUT-Pin transistor Voltage Rating selected |
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OV_RATIO_ACTUAL is too high |
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Max RBIAS greater than min required RBIAS |
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RBIAS selection is out of range |
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IB_MAX is too low |
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IB_MAX is too high |
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IB_MIN is too low |
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IB_GAIN is too low |
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VO less than VOmain stacked |
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SR AUX output in AC Stack |
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SR AUX output as CommonRTN |
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Negative output is set as Common RTN with non-main output |
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VOmain out of stack |
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Foil Wrap margin too small |
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| FWD Pin Rating Exceeded | |
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Device PCB Heatsink Area Exceeds Recommended limits |
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Device PCB Heatsink Area is Close to Recommended limits |
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Device on time may exceed maximum |
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Device off time may be below minimum |
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Output Voltage is too high |
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Primary circular mils per amp low |
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CMA below recommended |
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Incorrect VOQC Input |
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RBIAS is not delivering sufficient current to the bias |
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PDP is not standard for small power |
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PDP is not integer for high power |
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One of Set-Point is higher than PDP |
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VOPPSMAX low |
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VOPPSMIN high |
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USBPD Compliance failed - less setpoints |
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USBPD Compliance Test failed - non standard |
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Check counterpart parameters |
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Set-Point is higher than 5 A |
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Set-Point is higher than 3 A |
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Feedback Type Incompatible with Output |
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Switched Feedback Network Incompatible with Output |
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KP is too low, zero or negative |
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KP is less than 0.4 |
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Device On-time violated |
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Set-Point Voltage is higher than 20 V |
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Maximum Programmable Voltage is higher than 21 V |
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Minimum Programmable is not 3.3 V |
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Clamp capacitor voltage rating is too low |
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Bias capacitor voltage rating is too low |
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Output bulk capacitor voltage rating is too low |
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Output post filter capacitor voltage rating is too low |
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Fully utilized Transformer winding window |
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BaseLine Set-Point missing |
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The value is outside allowed range |