一种宽输入电压范围的直流转换装置

DC converter with wide inputting-voltage range

Abstract

The utility model relates to a DC/DC conversion device with wide input voltage arrange, comprising an input filter and protection circuit, a norm reference voltage circuit and a triangle-wave generation circuit, the input voltage is passed through the input filter and protection circuit and then an over-voltage protection circuit, sampling is performed in the comparing circuit and is compared with the norm reference voltage value, the integral amplification is performed, then the amplified signal is outputted to the sampling circuit, the wave form generated by the triangle wave generation circuit is sampled and amplified, finally the square wave generated by the sampling circuit will control the switch of an adjusting tube to realize the stabilized output, so that the requirements of both the cost and the power supply quality are met.
本实用新型公开了一种宽输入电压范围DC/DC变换装置,包括输入滤波和保护电路,基准参考电压电路,三角波发生电路,输入电压经过输入滤波和保护电路,以及过压保护电路,在比较电路中取样并和基准参考电压值比较,进行积分放大,然后把放大信号输出到取样电路中,并对三角波发生电路产生的波形进行取样并放大,最后取样电路生成的方波控制调整管的开关,对LC滤波电路进行充放电,保持一个稳定的输出电压,本实用新型利用反馈电路控制调整管开关,以实现稳定输出,做到兼顾成本和电源质量的要求。

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    CN-102355129-AFebruary 15, 2012江苏晟楠电子科技有限公司Linear regulator with current limiting short circuit protection function
    CN-102355129-BSeptember 26, 2012江苏晟楠电子科技有限公司Linear regulator with current limiting short circuit protection function