PWM DCDC工作原理

PWM DC/DC工作原理是指通过脉冲宽度调制（PWM）技术控制开关管的导通时间来实现直流电源的电压转换。在PWM DC/DC转换器中，使用变压器和开关管来实现电压的变换。当开关管导通时，变压器的初级绕组上会产生感应电动势，从而将输入电压转换为输出电压。PWM技术通过调整开关管的导通时间和断开时间来控制输出电压的稳定性和精度。同时，通过控制开关管的导通时间，可以实现零电压开关、零电流开关和零电压零电流开关三种软开关方式，以提高能量转换效率和减小开关管的损耗。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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