Dual-channel leakage protection integrated circuit

Abstract

The invention discloses a dual-channel leakage protection integrated circuit, and belongs to the technical field of integrated circuits. The dual-channel electric leakage protection integrated circuitcomprises a transient impact protection module, a first signal amplification module, a second signal amplification module, a timer, a latch, an anti-interference module and a constant-current drivingmodule. One end of the transient impact protection module is connected with a power supply end VCC, and the other end of the transient impact protection module is connected with an internal voltage stabilization and bias module such that peripheral protection devices are reduced; the first signal amplification module and the second signal amplification module are respectively provided with a built-in gain correction network module, thereby guaranteeing the high consistency of the induction sensitivity of a product, and facilitating the large-batch stable production of complete machine application. The first signal amplification module and the second signal amplification module are connected with the same timer, and the latch, the anti-interference module and the constant-current driving module are connected in sequence such that the number of pins and peripheral elements are greatly reduced, the cost is reduced, the cost performance is high, and the circuit is suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a dual-channel leakage protection integrated circuit. Background technique [0002] Traditional leakage protection integrated circuits often encounter problems such as difficult debugging and complex peripheral components when making leakage circuit breakers with both human body leakage and shell leakage protection functions; sometimes two or more similar leakage integrated circuits are used to complete 2 The detection and control of different leakage signals, but this method also brings a relatively high cost of use; [0003] In addition, with the use of domestic and foreign household appliances and wireless communications becoming more and more common, there are more and more transient impacts on the power grid, other interference signals, and space wireless radiation, which pose a threat to leakage protection circuits or leakage protection switches. Serious It can...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a dual-channel leakage protection integrated circuit to solve the problem that the existing leakage integrated circuit has high cost and is easy to be damaged, causing the leakage protection switch to fail and thus causing electric shock to personnel

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