利索-全球专利检索

  1. 登录
  2. 注册
实用新型
CN204145441U 一种三级循环定时控制电路 失效 - 权利终止

一种三级循环定时控制电路
摘要：
本实用新型公开了一种三级循环定时控制电路，包括自动复位电路、微分电路、定时电路和稳态电路，自动复位电路包括电阻R4、电阻R7和电容C11，自动复位电路在电源接通的瞬间，使集成电路IC3和集成电路IC4复位，微分电路包括电容C6和电阻R3，微分电路将矩形波转换为尖脉冲波，定时电路包括电位器RP和电容C5，定时电路决定循环定时控制的间隔时间，稳态电路包括集成电路IC1和电容C4，稳态电路形成定时控制单元。本实用新型，通过使用三端集成稳压电路IC1、集成电路IC2、集成电路IC3和集成电路IC4，简化了循环定时控制电路的电路结构，且三端集成稳压电路IC1、集成电路IC2、集成电路IC3和集成电路IC4价格低廉，极大的降低了成本。
摘要（英）：

The utility model discloses a three-level cyclic timing control circuit which comprises an automatic reset circuit, a differential circuit, a timing circuit and a steady state circuit. The automatic reset circuit comprises a resistor R4, a resistor R7 and a capacitor C11. At the moment a power supply is switched on, the automatic reset circuit resets an integrated circuit IC3 and an integrated circuit IC4. The differential circuit comprises a capacitor C6 and a resistor R3. The differential circuit converts a rectangular wave to a sharp pulse wave. The timing circuit comprises a potentiometer RP and a capacitor C5. The timing circuit determines the interval time of cyclic timing control. The steady state circuit comprises an integrated circuit IC1 and a capacitor C4. The steady state circuit forms a timing control unit. According to the utility model, the three terminal integrated voltage stabilizing circuit IC1, the integrated circuit IC2, the integrated circuit IC3 and the integrated circuit IC4 are used; the circuit structure of the cyclic timing control circuit is simplified; the three terminal integrated voltage stabilizing circuit IC1, the integrated circuit IC2, the integrated circuit IC3 and the integrated circuit IC4 are cheap; and the cost is greatly reduced.

0/0