Current and effect stabilizing control circuit chip and safe control electric appliance thereof

Abstract

The invention relates to a current and effect stabilizing control circuit chip and a safe control electric appliance of the control circuit chip. The current and effect stabilizing control circuit chip and the safe control electric appliance adopt the technical scheme that two parallel and complementary unit circuits are adopted for forming the current and effect stabilizing control circuit chip, wherein the input end of an isolation switch arranged in each unit circuit is connected with an amplifier; the output end of the isolation switch arranged in each unit circuit is connected with a bottom supporting type safe control circuit; weak sensing signals are amplified and are then transmitted to the bottom supporting type safe control circuit to be processed by the isolation switch; the strong sensing signals can be directly sent to the bottom supporting type safe control circuit to be processed directly from the level input end; each bottom supporting type safe control circuit has the bottom supporting protection and limit exceeding safety control function; in addition, the two bottom supporting type safe control circuits are mutually locked; if the inputs of the two unit circuits are used for parallelly detecting the sensing signals and the outputs of the two unit circuits are used for serially connecting a peripheral driving executing circuit, and the capability of comprehensively preventing the fault control loss is realized, so that when the current and effect stabilizing control circuit chip is applied to safety protection and test control circuits for the temperature, the pressure, the water level, the timing and the like, the safety performance can be improved, the control loss accident can be avoided, and the purposes are wide.

Description

Technical field [0001] The invention relates to a control circuit, in particular to a control circuit chip with a stable and stable effect and its safety control electrical appliances, which are used in temperature, pressure, water level, timing control and all limited-quantity measurement and control electrical appliances, which can improve safety performance and avoid use time Serious out-of-control accidents such as fire or pressure explosion occurred. Therefore, the present invention is widely used in electronic application fields such as small household appliances and simple limited measurement and control, timing control, safety protection, etc., and makes the electrical product performance / price ratio extremely high. Background technique [0002] In order to verify the novelty of the present invention, the inventor consulted a large number of related technical materials (professional books, newspapers and periodicals), and searched related patent documents, only to find th...

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Problems solved by technology

[0003] The invention mainly solves the technical problems that the original basic main control (super upper and lower limit control and timing control) circuits are often out of control due to abnormal faults, cannot cut off the load power supply in time, and has potential safety hazards; it provides a core circuit module that can comprehensively monitor Input / output / setting / control / power supply ports have abnormal open-circuit faults and short-circuit faults adjacent to ports, or short-circuit faults between ports, or input terminals exceed the bottom limit, or the upper and lower limits are pushed to the top, etc., and cut off in time Load power supply to ensure that the main control circuit is not out of control, avoid serious out-of-control accidents (such as fire or pressure explosion), and ensure the use of safe, stable and efficient control circuit chips and their safety control appliances.

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