本文研究设计了一种精密可调电源。 电压在3.3V至3.4V范围内,纹波电压及其峰值不超过100mV,功率约为1W,可为光模块提供电源,其安全性良好,并可支持射频器件,电源 电源启动浪涌电压的时间接近于0。在消除浪涌纹波的方法中,设计了额定输出电压5V,额定输出电流为1A的低压差线性稳压器(LDO),将该器件与DC / DC电路进行了比较,从而有效地减少了 波纹。 通过实验验证,设计方案可行,具有良好的应用价值。
This paper research and design a precision adjustable power supply. Thevoltage in therange of 3.3V to 3.4V, the ripple voltage and its peak value of not more than 100mV, power is about1W, the power supply can be provided to theoptical module, its security is good, and can supportthe RF device,the power supply starting surge voltage time close to 0. In the choice of method ofremoving surge ripple, designed a rated output voltage 5V, rated output current of 1A low dropoutlinear regulator (LDO), the device is compared to the DC/DC circuit, effectively reducingthe ripple. By experimental verification, the design scheme is feasible, and has good applicationvalue.
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