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Energy and environmental conservation have prompted interest in high efficiency and low standby power consumption in industrial switch mode power supply (SMPS) applications. However, it is difficult to satisfy both conditions simultaneously due to conflicting design considerations. In this paper, methods of low standby power consumption and high cross regulation are proposed using a novel active clamp...
This system designs a high efficient, low ripple switching power supply. It uses single-ended DC-DC forward converter, and the output range is controlled by regulating the pulse width of the PWM controller UC3844. The control part is called double closed-loop control circuit, composed by voltage feedback loop and current feedback loop. It can stable the output voltage, reduce voltage regulation and...
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