较低的工作频率提高ICL7660电压转换效率

摘要：本设计笔记显示了如何通过降低振荡器频率电压转换器的效率提高。振荡器电容添加到20mA的电压转换器的振荡频率降低，提高电压转换效率低的IO值。 ICL7660电荷泵的特点。

Maxim > App Notes > Battery Management Power-Supply Circuits
Keywords: voltage converter, charge pump, oscillator frequency, conversion efficiency Jul 09, 1998

APPLICATION NOTE 10
Lower Operating Frequency Improves ICL7660 Voltage-Conversion
Efficiency


Abstract:This design note shows how to improve the efficiency of a voltage converter by lowering the oscillator frequency.
Adding an oscillator capacitor to a 20mA voltage converter lowers the oscillator frequency, improving voltage conversion efficiency
for lower values of IO. The ICL7660 charge pump is featured.

You can improve the efficiency of an ICL7660 voltage-conversion circuit by lowering the oscillator frequency and increasing the
external capacitor values. Thou