di2490l2.txt
;***************************************************************************************************
; LISTING 2 - HALF-BRIDGE DRIVER IN PSPICE
;
; "Delay line eases Spice dead-time generation," March 2, 2000, pg 120
;
; http://www.ednmag.com/ednmag/reg/2000/030200/designideas.htm305di3
;*****************************************************************************************************

.SUBCKT NEWDT CLK GU SU QL PARAMS: DT=500N VHIGH=10V VLOW=100M RS=10
* Clock_In GateUpper SourceUpper GateLower
*
* DT: Dead time in seconds
* VHIGH: Output level when high
* VLOW: Output level when low
* RS: Driver's output resistance
*
EBU1 1 0 VALUE = { IF ( (V(CLK)>800M) & (V(TD1)>800M), {VHIGH}, {VLOW} ) }
EBU2 4 SU VALUE = { V(1) }
RSU 4 GU {RS}
RFLO SU 0 1G
EBL 2 0 VALUE = { IF ( (V(CLKB)>800M) & (V(TD2)>800M), {VHIGH}, {VLOW} ) }
RSL 2 QL {RS}
X1 CLK TD1 DL PARAMS: TD={DT}
X2 CLKB TD2 DL PARAMS: TD={DT}
X3 CLK CLKB INV
.ENDS
**********
.SUBCKT DL 1 2 PARAMS: TD=500n
*
RIN 1 0 1E15
E1 3 0 1 0 1
T1 3 0 2 0 Z0=1 TD={TD}
R1 2 0 1
.ENDS DL
**** 1 INPUT INVERTER ****
.SUBCKT INV 1 2
EB1 4 0 VALUE = { IF ( V(1)>800M, 0, 5V ) }
RD 4 2 100
CD 2 0 10P
.ENDS INV