TL594 Datasheet, PDF (7/12 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUIT

V_in
V_ref
Error Amplifier
+ Under Test
−
+
−
Other Error
Amplifier
Feedback
Terminal
(Pin 3)
Figure 11. Error−Amplifier Characteristics
TL594
Test
Inputs
50k
V_CC = 15V
V_CC
Deadtime
Feedback
R_T
C_T
(+)
(−) _Error
(+)
(−)
Output
Control
Gnd
150 150
2W 2W
C1
Output 1
E1
C2
Output 2
E2
Ref
Out
Figure 12. Deadtime and Feedback Control Circuit
Each
Output
Transistor
15V
C
Q
E
R_L
68
V_C
C_L
15pF
90%
V_CC
10%
t_r
90%
10%
t_f
Figure 13. Common−Emitter Configuration
Test Circuit and Waveform
Each
Output
Transistor
15V
C
Q
E
R_L
68
V_EE
C_L
15pF
90%
10%
Gnd
t_r
90%
V_EE
10%
t_f
Figure 14. Emitter−Follower Configuration
Test Circuit and Waveform
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