5A26458G05 用小电流去控制大电流运作的“自动开环”

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5A26458G05 用小电流去控制大电流运作的“自动开环”

电力继电器是一种电控制器件，当输入量（如电压、电流、温度等）的变化达到规定要求时，5A26458G05会在电气输出电路中使被控量发生预定的阶跃变化。这种电器具有控制系统（输入回路）和被控制系统（输出回路）之间的互动关系，在电路中起着自动调节、安全保护、转换电路等作用。

电力继电器通常应用于自动化的控制电路中，是一种用小电流去控制大电流运作的“自动开环”。继电器的左边是地面控制引脚，右边是常开端、常闭端和公共端，相当于一个开关。在没有上电时，常闭端和公共端相连；上电后，常开端和公共端相连。

电力继电器由线圈、磁路、反力弹簧和触点四部分组成。通电后，线圈产生电磁吸力，带动磁路中的衔铁吸合，让常闭和常开触点产生动作变化；断电后，反力弹簧帮助衔铁和触点恢复到初始状态。

此外，5A26458G05电力继电器正向微型化、表面贴装化方向发展，其体积不断减小，以适应电子整机对更小、更薄继电器的需求。同时，电力继电器在功能和应用上也得到了不断拓展，例如通过装入各种放大、延时、消触点抖动、灭弧、遥控、组合逻辑等电路，使其具有更多的功能。与微处理器的组合，使继电器具备了更广泛的专门控制功能，实现了高智能化。

5A26458G05 用小电流去控制大电流运作的“自动开环”

Power relay is an electrical control device, when the input (such as voltage, current, temperature, etc.) changes to meet the specified requirements, 5A26458G05 will make the controlled quantity in the electrical output circuit a predetermined step change. The electric appliance has an interactive relationship between the control system (input loop) and the controlled system (output loop), and plays an automatic regulation, safety protection, conversion circuit and other roles in the circuit.

Power relay is usually used in automatic control circuit, is a small current to control the operation of large current “automatic open loop”. The left side of the relay is the ground control pin, and the right side is the normally open, normally closed and common end, which is equivalent to a switch. When there is no power on, the normally closed end is connected to the common end; After the device is powered on, it is usually connected to the common terminal.

The electric relay consists of four parts: coil, magnetic circuit, reaction spring and contact. After power, the coil produces electromagnetic suction force, which drives the armature in the magnetic circuit to draw, so that the normally closed and normally open contacts produce action changes; After power failure, the reaction spring helps the armature and contacts to return to their initial state.

In addition, the 5A26458G05 power relay is developing in the direction of miniaturization and surface mount, and its volume is constantly decreasing to meet the needs of smaller and thinner relays for electronic machines. At the same time, the function and application of the power relay has been continuously expanded, for example, by loading a variety of amplification, delay, contact jitter elimination, arc extinguishing, remote control, combined logic and other circuits, so that it has more functions. Combined with the microprocessor, the relay has a wider range of special control functions and realizes high intelligence.