TL494_15 Datasheet, PDF (6/8 Pages) Unisonic Technologies – VOLTAGE MODE PWM CONTROL CIRCUIT

TL494
 TEST CIRCUIT
LINEAR INTEGRATED CIRCUIT
Vcc=15V
TEST
INPUTS
12k
0.01 F
50k
12
2W 150
4 _DEAD-TIME
Vcc
3 _FEEDBACK
6 _RT
5 _CT
1
2
16 ^{ERROR AMPLIFIER}
C1 ⁸
E1 ⁹
C2 ¹¹
E2 ¹⁰
15
13 _{OUTPUT CONTROL} VREF OUTPUT 14
GND
7
2W 150
OUTPUT 1
OUTPUT 2
VOLTAGE at C1
VOLTAGE at C2
VOLTAGE at CT
DEAD-TIME
THRESHOLD VOLTAGE
CONTROL INPUT
FEEDBACK
THRESHOLD VOLTAGE
FIG 1. OPERATIONAL TEST CIRCUIT AND WAVEFORMS
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 8
QW-R103-004. J