只要按图28那样在阈值检测器中使用性能匹配的稳压二极管，那么这个信号发生器电路就可以做到与温度变化和电源电压变化无关。
The generator may be made independent of temperature and supply voltage if the detector is clamped with matched zener diodes as shown in Figure 28.
根据直升机起飞、着舰时所需的助降灯光使用要求，考虑电磁兼容性标准，详细介绍了灯光助降系统的主机板、电源板、驱动电路、故障检测电路等硬件设计过程。
On the basis of the need of the lamplight for the helicopter to take off or touch down at the warship, the standard of the electromagnetic compatibility is considered.
论述了主要硬件电路的设计方案，其中包括晶闸管两端电压检测、三相电源同步信号检测等。
The main control system includes the synchronous signal generating circuit, the testing circuit of thyristor cut-off voltage and the trigger circuit of the thyristors etc.
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