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  • Why do you need to use an interlock circuit composed of 2 PNP and 2 NpN to control the magnetic latching relay?

    1. The magnetic latching relay is only a kind of relay and has no direct relationship with the self-interlocking circuit, which can organize the self-interlocking circuit. Second, the interlocking and self-locking of the relay is the need to reali...

  • What is the difference between a car relay and a fuse?

    1. Different in nature 1. The nature of the automotive relay: an automatic control device whose output will change in leaps and bounds when the input (electricity, magnetism, sound, light, heat) reaches a certain value. 2. The nature of the ...

  • What is a relay? What is it used for in the circuit?

    Relay (English name: relay) is an electrical control device, which is an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit when the change of the input quantity (excita...

  • How does the PWM pulse control the relay to work?

    multipoint control, Pulse relays are used to control resistive load circuits (such as incandescent lamps, low pressure halogen lamps, convection heaters) and inductive load circuits (such as fluorescent tubes, discharge lamps) The c...

  • Symptoms of a broken car relay

    The basic function of the automotive relay is to use a small current to control the operation of a large current, as an "automatic switch". It plays the role of automatic adjustment, safety protection, switching circuit and switch in the circuit. ...

  • Why does DC contactor have economic resistance

    Most DC contactors are high-voltage contactors, adding resistance can ensure the safety of power devices. For example, in new energy electric vehicles or high-voltage packs, due to excessive instantaneous current, a series of pre-charging resistor...

  • what is a relay

    According to the working principle or structural characteristics of the relay, there are thirteen types, namely: electromagnetic relay, solid state relay, temperature relay, reed relay, time relay, high frequency relay, polarization relay, photore...

  • What is new energy?

    New energy refers to various forms of energy other than traditional energy. The nouns are introduced in detail as follows: 1. Introduction: New energy is also called unconventional energy. Refers to various forms of energy other than traditiona...