The Power Factor Correction Circuit

Simulation and PFC Inductor Design with

SIMPLORER® and PExprt®

System engineercreates a design idea

Draw the schematic inSIMPLORER environment

Obtain the design parameters needed for magnetic components

Input into PExprt and get the optimized design

per designer’s option priorities

The Integrated Simulation and Design Tools:

SIMPLORER® and PExprt®

Send to the Prototype shop

Test and adjust parameters to achieve the specs

Currents Drawn from Power Line without Power Factor Correction

+

V

QuickGraph1

AM1.I [A] VM1.V [V]

t [s]

Default Default

1.50e+002 1.50e+002

-5.00e+001 -5.00e+001

0 0

1.00e+002 1.00e+002

0

0

4.00e-002

4.00e-002

2.00e-002

2.00e-002

A

D1

D2D3

D4

E1R1

VM1

AM1

+

V

QuickGraph2

AM2.I [A] VM2.V [V]

t [s]

Default

2.00e+002

-2.00e+002

0

0

0

4.00e-002

4.00e-002

2.00e-002

2.00e-002

A

D5

D6D7

D8

E2R2

VM2

AM2

C1

FREQ := 50

AMPL := 110

VF := 0.8

RB := 1m

RR := 100k

VF := 0.8

RB := 1m

RR := 100k

VF := 0.8

RB := 1m

RR := 100k

VF := 0.8

RB := 1m

RR := 100k

R := 6

FREQ := 50

AMPL := 110

VF := 0.8

RB := 1m

RR := 100k

VF := 0.8

RB := 1m

RR := 100k

VF := 0.8

RB := 1m

RR := 100k

VF := 0.8

RB := 1m

RR := 100k

C := 4000u

R := 6

The Parameters Needed to Input into SIMPLORER

EQUICA:

Input Data Control Parameters

F_chopping:=100kP_out:=1000V_out:=400F_line_min:=47F_line_max:=65V_line_min:=80V_line_max:=270Transient_Steady:=1Ripple_coefficient:=0.2V_line_min_peak:=sqrt(2)*V_line_min

I:=(2*P_out/E1.AMPL)*(E1.EMF/E1.AMPL)I_upper:=1.1*II_lower:=0.9*IC_out:=P_out*1.5uDuty_max:=(V_out-sqrt(2)*V_line_min)/V_outI_ripple_peak_peak:=Ripple_coefficient*(sqrt(2)*P_out/V_line_min)L_pfc:=Sqrt(2)*V_line_min*Duty_max/(F_chopping*I_ripple_peak_peak)

Power Factor Correct Circuit Simulation

and Magnetic Design Parameters Obtained

QuickGraph2

10 * AM2.I [A] C1.V [V] E1.EMF [V] 10 * MEAN_SLD1.VAL

t [s]

Default

6.00e+002

-2.00e+002

0

2.50e+002

0

0

2.50e-002

2.50e-002

1.00e-002

1.00e-002

2.00e-002

2.00e-002

A

D5

D6D7

D8E1

R1

AM2

C1

BJT1

D1

L1

Sliding Mean

MEAN_SLD1

abs(AM2.I)<=abs(I_lower)

abs(AM2.I)>=abs(I_upper)

SET: := C:=1

SET: := C:=0

R1.R [Ohm]

0.16kC1.C [F]

1.5m

L1.L [H]

0.22949m

MAX_PERIO1.VAL

17.259

MAXIMUM

MAX_PERIO1

70,7%

RMS

RMS1

I_ripple_peak_peak

3.53553

V_line_min_peak

0.113137k

Duty_max

0.717157

C := C_out R := squ(V_out)/P_outVF := 0.8RB := 1mRR := 100k

FREQ := F_line_min

AMPL := V_line_min_peak L := L_pfc

Input the Parameters into PExprt

Specify the Optimize Priority for the

Design Option List

Design List per System Engineer’sDesign Priorities

Selected Design from the List

Magnetic Component Performance for a Selected Design

Create SIMPLORER Model from PExprt

Create SIMPLORER Model from PEmag

Create SIMPLORER 1D-Model from PEmag

Create SIMPLORER 2D-Model from PEmag

Put Magnetic Model Back into SIMPLORER

Add SMPS6 Diode Bridge