For in switching power supply, battery charger, motor drive, class D power amplifier circuit, etc of the need, especially in high frequency application need, this paper studied and designed a complementary signal generating circuit. This design uses delay compensation method, avoid using frequency division method to generate complementary signal need a higher frequency sources of adverse. Analysis the different delay compensation device cause delay unbalance reasons, put forward the same gate symmetric compensation scheme. And further analyzed in this scheme delay error reasons, such as production process and material characteristic and application of voltage, temperature, etc factors, Points out that the must use gates in a package for compensation of the reason. Then according to the commonly used TTL device, with low level delay time and high level delay time are not equal, puts forward the improvement scheme that symmetric series inverter to counteract the delay time difference. Finally, according to some TTL device signal delay time but also by another input end input level the influence of high and low, and points out that the scheme is applicable device model, and their suitable frequency range. Several scheme have been different temperature and different voltage of the actual test, and proved their feasibility and reliability.%为在开关电源、电池充电器、电机驱动、D类功率放大器等电路中的应用需要,特别是在较高工作频率时的应用需要,研究设计了一种互补信号产生电路.该设计采用延迟补偿的方法,避免了用两倍频率信号分频产生互补信号的方法中需要较高频率的信号源的不足.分析了由于不同的延迟补偿器件引起的延迟不平衡原因,提出了用相同的门电路对称补偿的方案.并进一步分析了在此方案中延迟误差产生的原因,诸如生产工艺、材料特性、应用电压、应用温度等因素的影响,指出了必须采用同一个器件封装中的门电路进行补偿的原因.再针对常用的TTL器件,由于有低电平延迟时间和高电平延迟时间大多不相等的现象,提出了对称串联反相器以抵消延迟时间差异的改进方案.最后根据有些TTL器件信号延迟时间还受另一个输入端输入电平高低的影响,指出了该方案适用的器件型号,以及它们适用的频率范围.几种方案都经过了不同温度和不同电压情况下的实际测试,证明了它们的可行性和可靠性.
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