R
L
– Output Load Resistance (kW)
Open-Loop Voltage Gain (dB)
V
IN
= 20 V
T
A
= 255C
UC1846-EP
CURRENT-MODE PWM CONTROLLER
SGLS329 – MAY 2006
APPLICATION INFORMATION (continued)
Figure 5. Error-Amplifier Open-Logic DC Gain vs Load Resistance
Figure 6. Parallel Operation
8
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