Energy-saving unit of alternating current solenoid valve or alternating current contactor
A technology of AC contactor and AC solenoid valve, applied in valve details, relays, electrical components, etc., can solve problems such as power loss, annoying AC noise, burnt excitation coil, etc., to achieve the effect of saving power
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[0051] Below in conjunction with accompanying drawing, illustrate the embodiment of the present invention.
[0052] Figure 4 It is the principle block diagram of the present invention, in the figure: L is the excitation coil in the conventional AC solenoid valve or the conventional AC contactor, and A1 and A2 are the two connection ports thereof.
[0053] combine Figure 4 : A power-saving unit of an AC solenoid valve or an AC contactor, which is a four-port network consisting of a first input port N1, a second input port N2, a first output port T1, a second output port T2, a transient voltage Composed of suppression diode TVS, AC-DC conversion circuit 101, control pulse generating circuit 102, and pulse-controlled special-shaped bridge circuit 103, it is characterized in that: the first input port N1 is connected to the P1 terminal of the AC voltage, and the second The input port N2 is connected to the P2 end of the AC voltage; one end of the transient voltage suppression ...
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