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大多数运算放大器都需要对称电压供电。这里介绍的电压变换器能将4.5V直流电压转换成±9V对称电压。该电压变换器电路如附图所示。电路由振荡器和倍压器两部分组成。振荡器由两个串联反相器和C1、R1、R2组成(三个并联的反相器是增大输出电流)。
Most op amps require symmetrical voltage supplies. The voltage converter introduced here converts a 4.5V DC voltage into a ± 9V symmetrical voltage. The voltage converter circuit is shown in the drawing. Circuit by the oscillator and voltage doubler composed of two parts. Oscillator consists of two series inverters and C1, R1, R2 (three parallel inverter is to increase the output current).