As it is difficult to adjust the polarity of the pulse generator′s output signal, and its power consumption is very high, a low-power muli-channel differential pulse generator is designed. The generator consists of power supply module, control module and pulse generating module. Compared with other pulse generators, its circuit is simpler and it solves the difficult problem to control the polarity of pulses and realizes that the amplitude, pulse width and frequency of generating pulses are adjustable and controllable. By means of real circuit testing, experimental result is consistent with expected result, and the variable range of amplitude is 1.7-10 V, frequency range is 10-1 000 Hz, pulse width is adjustable from 50 to 5 000μs, and differential pulse output can be realized between any of two channels, what′s more, power consumption is very low. Therefore, the circuit has a practical significance, and can be used in implantable stimulation.%针对脉冲发生器输出信号极性不易调节、功耗较大等弊端，设计一种低功耗多通道差动脉冲信号发生器.该发生器由电源模块、主控模块、脉冲发生模块组成，与其他脉冲发生器相比，电路更为简单，并解决了输出信号极性可控的难题，且可实现输出信号的幅值、脉宽、频率等参数可调.通过实际电路实验得出，实验结果与理论分析结果吻合，且幅值可调范围为1.7~10 V，频率可调范围为10~1000 Hz，脉宽可调范围为50~5000μs，并可实现任意两通道的差动脉冲输出，且功耗较低.因此所设计的电路具有实际意义，可应用于植入式刺激器等领域.
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