Energy accumulation type DC suction and DC keeping circuit for AC contactor
An AC contactor and circuit-holding technology, applied in circuits, relays, electrical components, etc., can solve the problems of easy contact jitter, too large structural changes, poor reliability, etc., to improve the reliability of action, pull-in Keep the voltage fluctuation small and work reliably
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[0032] Below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure and features provided by the present invention are described in detail as follows:
[0033] Through the analysis and research of the existing technical solutions, the present invention proposes a simple and reliable technical solution based on the idea of DC holding and DC pull-in, the principle of which is as follows: image 3 shown.
[0034] In the figure: KM is a contactor, J is a relay, and there are four diodes D1, D2, D3, D4 to form a bridge-type full-wave rectification circuit, which converts alternating current into direct current.
[0035] The specific connection relationship of the circuit is as follows: the first capacitor C1 is connected to the anode of the first diode D1 and the cathode of the third diode D3, and the cathode of the first diode D1 is connected to the cathode of the second diode D2 , the anode of the second diode D2 is conn...
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