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Isolated voltage converter with feedback on the primary winding, and corresponding method for controlling the output voltage
Isolated voltage converter with feedback on the primary winding, and corresponding method for controlling the output voltage
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机译:具有初级绕组反馈的隔离式电压转换器以及用于控制输出电压的相应方法
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摘要
An embodiment of a voltage converter includes: voltage-transformer means having a primary side, designed to receive an input voltage, and a secondary side, designed to supply an output voltage; control-switch means coupled to said primary side; and a control circuit, coupled to a control terminal of said control-switch means and designed to control switching thereof as a function of a first signal correlated to said output voltage; said control circuit being provided with an error-amplifier stage, designed to process a difference between said first signal and a reference signal, wherein said error-amplifier stage is configured so as to have a transconductance characteristic with a linear-operation region, having a given slope, and at least one first clamped region, which has a slope lower than said given slope and is contiguous to said linear-operation region.
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