The overall design method of the power supply is put forward, constant-current source circuit and AC source circuit are developed separately;

提出了功放系统的整体设计思路，分别设计了恒流源电路与交流放大电路；

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From the stability formula of the base circuit, the stability expression within constant current source and assistant power is discussed.

从基本电路的稳定度公式出发，讨论了采用恒流源负载和辅助电源的稳定度表达式。

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In the circuit design, unit current source arrays and digital synchronizing cells are used to improve the matching and dynamic range of DAC.

电路设计中使用单位电流源阵列和数字同步控制单元来提高电流源的匹配性和动态范围；

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