阐述了组织温度控制算法、治疗头水温控制以及脉宽调制信号产生三个系统核心子模块的设计。

Real time tissue temperature control algorithm, ultrasound applicator water temperature control and pulse width modulation (PWM) signal generation are described.

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设计实现了基于差分后谐波检测的微弱信号处理电路、前置放大电路、差分电路、调制电路和光源温度控制电路及电流驱动电路等。

The circuit of Photoelectricity Weak Signal Detection, preamplifier circuit, difference circuit, modulation circuit, optical source thermal control and current drive circuit etc. are designed.

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具体讨论了H调制式惯性导航设备中利用该种电路设计进行陀螺温度控制的优越性， 分析了内模控制器设计的模型，并进行了方案的试验验证。

Then it shows the advantages of the circuit used in H modulation inertial navigation system, analyses the IMC model and verifies the concrete circuit scheme.

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