请教关于TOPSWITCH的问题
请问我想用这个片子做个电源,输入AC220V,输出12V,1A,请问选用哪个型号的片子最好?变压器该如何选择?
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Device Variables
Var Value Output 1
(main) Units Description
Device TOP242Y PI Device Name
PO 12.1 Watts Total Output Power
VDRAIN 678 Volts Maximum Drain Voltage
VDS 6.42 Volts Drain to Source Voltage
FS 132000 Hertz Switching Frequency
KRPKDP 1.26 Continuous/Discontinuous Operating Ratio
KI 1.00 KI Factor
ILIMITEXT 0.42 Amps Device Current Limit External Minimum
ILIMITMIN 0.42 Amps Current Limit Minimum
ILIMITMAX 0.48 Amps Current Limit Maximum
IP 0.39 Amps Peak Primary Current
IRMS 0.13 Amps Primary RMS Current
DMAX 0.32 Maximum Duty Cycle
Power Supply Components Selection
Var Value Output 1
(main) Units Description
CIN 10.0 uFarads Input Capacitance
VMIN 229.1 Volts Minimum DC Input Voltage
VMAX 374.8 Volts Maximum DC Input Voltage
VCLO 200 Volts Clamp Zener Voltage
PZ 0.9 Watts Primary Zener Clamp Loss
VDB 0.70 Volts Bias Diode Forward Voltage Drop
PIVB 47 Volts Bias Rectifier Max Peak Inverse Voltage
RLS1 4.7 MOhms Line sense resistor
VUVON_MIN 207.19 Volts Minimum undervoltage threshold beyond which Power supply will start-up
VUVON_MAX 253.71 Volts Maximum undervoltage threshold before which Power Supply will start-up
VOVOFF_MIN 979.43 Volts Minimum overvoltage threshold after which Power Supply will turn off after an over voltage condition
VOVOFF_MAX 1118.99 Volts Maximum overvoltage threshold before the Power Supply will turn off after an over voltage condition
Comment: Drain voltage close to BVDSS at maximum OV threshold
Tip: Verify BVDSS during line surge, decrease VUVON_MAX or reduce VOR.
Power Supply Output Parameters
Var Value Output 1
(main) Units Description
VDx 0.70 Volts Output Winding Diode Forward Voltage Drop
PIVSx 47 Volts Output Rectifier Maximum Peak Inverse Voltage
ISPx 3.99 Amps Peak Secondary Current
ISRMSx 1.69 Amps Secondary RMS Current
IRIPPLEx 1.36 Amps Output Capacitor RMS Ripple Current
Transformer Construction Parameters
Var Value Output 1
(main) Units Description
Core/Bobbin EE19 Core Type
Core Manuf. Generic Core Manufacturer
Bobbin Manuf Generic Bobbin Manufacturer
LP 1343 uHenries Primary Inductance
NP 106.3 Primary Number of Turns
NB 10.0 Bias Winding Number of Turns
AWG 35 AWG Primary Wire Gauge
CMA 249 Cmils/A Primary Winding Current Capacity
VOR 135.00 Volts Reflected Output Voltage
BW 9.00 mm Bobbin Winding Width
M 0.0 mm Safety Margin Width
L 2.20 Primary Number of Layers
AE 23.00 mm^2 Core Cross Sectional Area
ALG 119 nH/T^2 Gapped Core Effective Inductance
BM 2148 Gauss Maximum Flux Density
BP 2643 Gauss Peak Flux density
BAC 1074 Gauss AC Flux Density for Core Loss
LG 0.22 mm Gap Length
LL 26.9 uHenries Primary Leakage Inductance
LSEC 20 nHenries Secondary Trace Inductance
Secondary Parameters
Var Value Output 1
(main) Units Description
NSx 10.0 Secondary Number of Turns
Rounded Down NSx Rounded to Integer Secondary Number of Turns
Rounded Down Vox Volts Auxiliary Output Voltage for Rounded down to Integer Secondary Number of Turns
Rounded Up NSx Rounded to Next Integer Secondary Number of Turns
Rounded Up Vox Volts Auxiliary Output Voltage for Rounded up to Next Integer Secondary Number of Turns
AWGSx Range 21 - 25 AWG Secondary Wire Gauge Range
Comment: Secondary wire gauge is less than recommended minimum (26 AWG)
Tip: Consider a parallel winding technique (bifilar, trifilar) for > 1.5 A outputs, increase size of transformer (larger BW) or reduce margin (M).
Var Value Output 1
(main) Units Description
Device TOP242Y PI Device Name
PO 12.1 Watts Total Output Power
VDRAIN 678 Volts Maximum Drain Voltage
VDS 6.42 Volts Drain to Source Voltage
FS 132000 Hertz Switching Frequency
KRPKDP 1.26 Continuous/Discontinuous Operating Ratio
KI 1.00 KI Factor
ILIMITEXT 0.42 Amps Device Current Limit External Minimum
ILIMITMIN 0.42 Amps Current Limit Minimum
ILIMITMAX 0.48 Amps Current Limit Maximum
IP 0.39 Amps Peak Primary Current
IRMS 0.13 Amps Primary RMS Current
DMAX 0.32 Maximum Duty Cycle
Power Supply Components Selection
Var Value Output 1
(main) Units Description
CIN 10.0 uFarads Input Capacitance
VMIN 229.1 Volts Minimum DC Input Voltage
VMAX 374.8 Volts Maximum DC Input Voltage
VCLO 200 Volts Clamp Zener Voltage
PZ 0.9 Watts Primary Zener Clamp Loss
VDB 0.70 Volts Bias Diode Forward Voltage Drop
PIVB 47 Volts Bias Rectifier Max Peak Inverse Voltage
RLS1 4.7 MOhms Line sense resistor
VUVON_MIN 207.19 Volts Minimum undervoltage threshold beyond which Power supply will start-up
VUVON_MAX 253.71 Volts Maximum undervoltage threshold before which Power Supply will start-up
VOVOFF_MIN 979.43 Volts Minimum overvoltage threshold after which Power Supply will turn off after an over voltage condition
VOVOFF_MAX 1118.99 Volts Maximum overvoltage threshold before the Power Supply will turn off after an over voltage condition
Comment: Drain voltage close to BVDSS at maximum OV threshold
Tip: Verify BVDSS during line surge, decrease VUVON_MAX or reduce VOR.
Power Supply Output Parameters
Var Value Output 1
(main) Units Description
VDx 0.70 Volts Output Winding Diode Forward Voltage Drop
PIVSx 47 Volts Output Rectifier Maximum Peak Inverse Voltage
ISPx 3.99 Amps Peak Secondary Current
ISRMSx 1.69 Amps Secondary RMS Current
IRIPPLEx 1.36 Amps Output Capacitor RMS Ripple Current
Transformer Construction Parameters
Var Value Output 1
(main) Units Description
Core/Bobbin EE19 Core Type
Core Manuf. Generic Core Manufacturer
Bobbin Manuf Generic Bobbin Manufacturer
LP 1343 uHenries Primary Inductance
NP 106.3 Primary Number of Turns
NB 10.0 Bias Winding Number of Turns
AWG 35 AWG Primary Wire Gauge
CMA 249 Cmils/A Primary Winding Current Capacity
VOR 135.00 Volts Reflected Output Voltage
BW 9.00 mm Bobbin Winding Width
M 0.0 mm Safety Margin Width
L 2.20 Primary Number of Layers
AE 23.00 mm^2 Core Cross Sectional Area
ALG 119 nH/T^2 Gapped Core Effective Inductance
BM 2148 Gauss Maximum Flux Density
BP 2643 Gauss Peak Flux density
BAC 1074 Gauss AC Flux Density for Core Loss
LG 0.22 mm Gap Length
LL 26.9 uHenries Primary Leakage Inductance
LSEC 20 nHenries Secondary Trace Inductance
Secondary Parameters
Var Value Output 1
(main) Units Description
NSx 10.0 Secondary Number of Turns
Rounded Down NSx Rounded to Integer Secondary Number of Turns
Rounded Down Vox Volts Auxiliary Output Voltage for Rounded down to Integer Secondary Number of Turns
Rounded Up NSx Rounded to Next Integer Secondary Number of Turns
Rounded Up Vox Volts Auxiliary Output Voltage for Rounded up to Next Integer Secondary Number of Turns
AWGSx Range 21 - 25 AWG Secondary Wire Gauge Range
Comment: Secondary wire gauge is less than recommended minimum (26 AWG)
Tip: Consider a parallel winding technique (bifilar, trifilar) for > 1.5 A outputs, increase size of transformer (larger BW) or reduce margin (M).
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@xyx911
DeviceVariablesVarValueOutput1(main)UnitsDescriptionDeviceTOP242Y PIDeviceNamePO12.1 WattsTotalOutputPowerVDRAIN678 VoltsMaximumDrainVoltageVDS6.42 VoltsDraintoSourceVoltageFS132000 HertzSwitchingFrequencyKRPKDP1.26 Continuous/DiscontinuousOperatingRatioKI1.00 KIFactorILIMITEXT0.42 AmpsDeviceCurrentLimitExternalMinimumILIMITMIN0.42 AmpsCurrentLimitMinimumILIMITMAX0.48 AmpsCurrentLimitMaximumIP0.39 AmpsPeakPrimaryCurrentIRMS0.13 AmpsPrimaryRMSCurrentDMAX0.32 MaximumDutyCyclePowerSupplyComponentsSelectionVarValueOutput1(main)UnitsDescriptionCIN10.0 uFaradsInputCapacitanceVMIN229.1 VoltsMinimumDCInputVoltageVMAX374.8 VoltsMaximumDCInputVoltageVCLO200 VoltsClampZenerVoltagePZ0.9 WattsPrimaryZenerClampLossVDB0.70 VoltsBiasDiodeForwardVoltageDropPIVB47 VoltsBiasRectifierMaxPeakInverseVoltageRLS14.7 MOhmsLinesenseresistorVUVON_MIN207.19 VoltsMinimumundervoltagethresholdbeyondwhichPowersupplywillstart-upVUVON_MAX253.71 VoltsMaximumundervoltagethresholdbeforewhichPowerSupplywillstart-upVOVOFF_MIN979.43 VoltsMinimumovervoltagethresholdafterwhichPowerSupplywillturnoffafteranovervoltageconditionVOVOFF_MAX1118.99 VoltsMaximumovervoltagethresholdbeforethePowerSupplywillturnoffafteranovervoltageconditionComment:DrainvoltageclosetoBVDSSatmaximumOVthresholdTip:VerifyBVDSSduringlinesurge,decreaseVUVON_MAXorreduceVOR.PowerSupplyOutputParametersVarValueOutput1(main)UnitsDescriptionVDx 0.70VoltsOutputWindingDiodeForwardVoltageDropPIVSx 47VoltsOutputRectifierMaximumPeakInverseVoltageISPx 3.99AmpsPeakSecondaryCurrentISRMSx 1.69AmpsSecondaryRMSCurrentIRIPPLEx 1.36AmpsOutputCapacitorRMSRippleCurrentTransformerConstructionParametersVarValueOutput1(main)UnitsDescriptionCore/BobbinEE19 CoreTypeCoreManuf.Generic CoreManufacturerBobbinManufGeneric BobbinManufacturerLP1343 uHenriesPrimaryInductanceNP106.3 PrimaryNumberofTurnsNB10.0 BiasWindingNumberofTurnsAWG35 AWGPrimaryWireGaugeCMA249 Cmils/APrimaryWindingCurrentCapacityVOR135.00 VoltsReflectedOutputVoltageBW9.00 mmBobbinWindingWidthM0.0 mmSafetyMarginWidthL2.20 PrimaryNumberofLayersAE23.00 mm^2CoreCrossSectionalAreaALG119 nH/T^2GappedCoreEffectiveInductanceBM2148 GaussMaximumFluxDensityBP2643 GaussPeakFluxdensityBAC1074 GaussACFluxDensityforCoreLossLG0.22 mmGapLengthLL26.9 uHenriesPrimaryLeakageInductanceLSEC20 nHenriesSecondaryTraceInductanceSecondaryParametersVarValueOutput1(main)UnitsDescriptionNSx 10.0 SecondaryNumberofTurnsRoundedDownNSx RoundedtoIntegerSecondaryNumberofTurnsRoundedDownVox VoltsAuxiliaryOutputVoltageforRoundeddowntoIntegerSecondaryNumberofTurnsRoundedUpNSx RoundedtoNextIntegerSecondaryNumberofTurnsRoundedUpVox VoltsAuxiliaryOutputVoltageforRoundeduptoNextIntegerSecondaryNumberofTurnsAWGSxRange 21-25AWGSecondaryWireGaugeRangeComment:Secondarywiregaugeislessthanrecommendedminimum(26AWG)Tip:Consideraparallelwindingtechnique(bifilar,trifilar)for>1.5Aoutputs,increasesizeoftransformer(largerBW)orreducemargin(M).
真是不好意思.有好多专业词汇看不懂,最好是说明初级、次级及反馈线圈的线径,匝数,还有磁芯.
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@qqqq
真是不好意思.有好多专业词汇看不懂,最好是说明初级、次级及反馈线圈的线径,匝数,还有磁芯.
500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/27/1111998105.gif');}" onmousewheel="return imgzoom(this);">
请问这个电路图可以吗?里面的器件的参数用不用改呀?谢谢!
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@qqqq
[图片]500){this.resized=true;this.width=500;this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/27/1111998105.gif');}"onmousewheel="returnimgzoom(this);">请问这个电路图可以吗?里面的器件的参数用不用改呀?谢谢!
当然可以,
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@qqqq
[图片]500){this.resized=true;this.width=500;this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/27/1111998105.gif');}"onmousewheel="returnimgzoom(this);">请问这个电路图可以吗?里面的器件的参数用不用改呀?谢谢!
这是PI产品的典型应用电路,可以用,元件不用改.
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