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Text File | 1992-02-12 | 4.3 KB | 191 lines | [TEXT/MSWD] |
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- **** 02/12/92 08:24:53 *********** Evaluation PSpice (Jan 1992) **************
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- Power supply simulation using Vorperian's switch model
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- **** CIRCUIT DESCRIPTION
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- ******************************************************************************
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- *
- * Reference: "Simplified Analysis of PWM Converters using Model of
- * PWM Switch", IEEE Transactions on Aerospace and
- * Electronic Systems. May 1990
- *
- * A transient and AC analysis is performed on the circuit and
- * the information obtained is documented below.
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- * Select which ac source to activate depending on which characteric of
- * the power supply you want to examine.
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- .probe
- .nodeset v(10)=1.78396829; aid biaspoint calculation
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- .ac dec 10 10 100k
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- VIN 1 0 20 ac 0 ; with ac set to 1 and the ac analysis sweep done
- * vdb(5)-vdb(12) ----> audio suceptibility
- vinAC 55 5 0 ac 1 ; with ac set to 1 and the ac analysis sweep done
- * vdb(5)-vdb(55) ----> loop gain
- * vp(5)-vp(55) ----> loop phase
- * vdb(5)-vdb(12) ----> control to output transfer function gain
- * vp(5)-vp(12) ----> control to output transfer function phase
- Iout 5 0 0 ac 0 ; with ac set to 1 and the ac analysis sweep done
- * v(5) ----> output impedance
- *
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- * The tran statement will simulate 4ms during which the supply experiences
- * a one amp step load.
- *
- .tran 1ns 4ms 0 20us
- vref 51 0 4.9
- iload 5 0 pulse(0 1 1ms 1us 1us 25ms 50ms)
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- rdamp 2 3 3
- lf 3 5 500uh
- rc1 6 0 .0002
- cf 5 6 4840uf
- rl 5 0 5
- x1 1 0 2 12 pwm
- x2 51 55 10 erramp
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- * compensation network
- CCOMP 78 0 100N
- RCOMP 10 78 18k
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- *modulator gain
- emod 12 0 table {(v(10)-1)/2} = (0,0) (1,1)
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- * vorperians switch model
- .subckt pwm A P C D
- gap a x value {v(d)*i(vc)}
- ecp x p value={v(d)*v(a,p)}
- vc x c 0
- rconv d 0 1g
- .ends
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- * amp
- * + - o
- .SUBCKT erramp 1 2 5
- VT 10 0 4.3
- VB 20 0 .7
- RIN1 1 0 1e10
- RIN2 2 0 1e10
- DT 5 10 DX
- DB 20 5 DX
- *G1 0 5 TABLE {.0062*EXP((V(1)-V(2))/.0256) *(V(1)-V(2)) } (-100U -100U) (100U 100U)
- G1 0 5 TABLE {.0045 *(V(1)-V(2)) } (-200U -200U) (200U 200U)
- ROUT 5 0 2meg
- CPOLE 5 0 .2N
- .MODEL DX D(IS=1E-19 RS=.01)
- .ENDS
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- .END
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- **** 02/12/92 08:24:53 *********** Evaluation PSpice (Jan 1992) **************
-
- Power supply simulation using Vorperian's switch model
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- **** Diode MODEL PARAMETERS
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- ******************************************************************************
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- x2.DX
- IS 100.000000E-21
- RS .01
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- **** 02/12/92 08:24:53 *********** Evaluation PSpice (Jan 1992) **************
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- Power supply simulation using Vorperian's switch model
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- **** SMALL SIGNAL BIAS SOLUTION TEMPERATURE = 27.000 DEG C
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- ******************************************************************************
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- NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE
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- ( 1) 20.0000 ( 2) 7.8397 ( 3) 4.8998 ( 5) 4.8998
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- ( 6) 0.0000 ( 10) 1.7840 ( 12) .3920 ( 51) 4.9000
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- ( 55) 4.8998 ( 78) 1.7840 ( x1.x) 7.8397 (x2.10) 4.3000
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- (x2.20) .7000
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- VOLTAGE SOURCE CURRENTS
- NAME CURRENT
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- VIN -3.841E-01
- vinAC -4.909E-10
- vref -4.900E-10
- x1.vc 9.800E-01
- x2.VT -2.516E-12
- x2.VB 1.095E-12
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- TOTAL POWER DISSIPATION 7.68E+00 WATTS
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- **** 02/12/92 08:24:53 *********** Evaluation PSpice (Jan 1992) **************
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- Power supply simulation using Vorperian's switch model
-
-
- **** INITIAL TRANSIENT SOLUTION TEMPERATURE = 27.000 DEG C
-
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- ******************************************************************************
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- NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE
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- ( 1) 20.0000 ( 2) 7.8397 ( 3) 4.8998 ( 5) 4.8998
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- ( 6) 0.0000 ( 10) 1.7840 ( 12) .3920 ( 51) 4.9000
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- ( 55) 4.8998 ( 78) 1.7840 ( x1.x) 7.8397 (x2.10) 4.3000
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- (x2.20) .7000
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- VOLTAGE SOURCE CURRENTS
- NAME CURRENT
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- VIN -3.841E-01
- vinAC -4.909E-10
- vref -4.900E-10
- x1.vc 9.800E-01
- x2.VT -2.516E-12
- x2.VB 1.095E-12
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- TOTAL POWER DISSIPATION 7.68E+00 WATTS
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- JOB CONCLUDED
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- TOTAL JOB TIME 7.48
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