或断出保护式超限位控制电路

Or-separation protective type limit-exceeding control circuit

  • Inventors:
  • Assignees: 刘少华
  • Publication Date: December 23, 2009
  • Publication Number: CN-201369550-Y

Abstract

本实用新型属于一种利用8个模拟集成(电路)电压比较器B<sub>1</sub>~B<sub>8</sub>作核心器件,用或断出保护控制新原理,以巧妙的连接方式简单构成四个独立单元的“或断出”保护式超限位控制电路。每个独立单元电路的独特重要功能是:保护控制电路对负载有优先控制权。当输入传感电路发生异常故障(如Ntc断线)时,能及时进行保护控制和故障显示(保显),以免超限位控制电路失控。应用在温度、压力、水位等控制电路中,能提高安全性能,避免严重事故(如火灾)发生。本实用新型又由于成本很低(8引脚封装可容纳两个独立单元电路,且外电路简单)。因此,在小家电、简易控制电路等电子应用领域用途更广,且使产品性/价比更高。
The utility model belongs to an or-separation protective type limit-exceeding control circuit, which utilizes eight analog integrated (circuit) voltage comparators B1 to B8 as core devices, uses new principles of or-separation protective control, and forms four independent units through an ingenious connection mode. Each independent unit circuit has the unique important functions that the protective control circuit has priority control rights to load. When an input sensing circuit generates abnormal faults (such as Ntc circuit breaking), and protective control and fault display (protective display) are carried out in time for preventing a transfinite control circuit from off-control. The or-separation protective type limit-exceeding control circuit is applied in control circuits such as temperature, pressure, water level and the like, can improve the safety performance, and avoids serious accidents (such as fire hazards). Furthermore, since the or-separation protective type limit-exceeding control circuit has very low cost (eight pin packaging can contain two independent unit circuits and the external circuits are simple), the or-separation protective type limit-exceeding control circuit has wider uses in electronic application fields such as small household electrical appliances, simple control circuits and the like, and enables the product performance price rate to be higher.

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Cited By (3)

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    CN-102111137-AJune 29, 2011刘圣平安全控制时基电路
    CN-102111137-BJune 05, 2013刘圣平Safe control time-base circuit
    CN-102157917-AAugust 17, 2011刘圣平越底反控时基电路