Power failure voice report security power socket circuit

MOS power IC full range

inductance

SMD aluminum electrolytic capacitor

The 555 circuit, which contains two voltage comparators, a basic RS flip-flop, and a discharge switch T, the comparator's reference voltage is provided by a voltage divider consisting of three 5K resistors. They respectively make the non-inverting input of the high-level comparator A1 and the inverting of the low-level comparator A2, and the reference levels of the input terminals are 2/3VCC and 1/3VCC. The outputs of the A2 and A2 control the RS flip-flop state and Discharge tube switch status. When the input signal is from the 6 pin, that is, the high level triggers the input and exceeds the reference level 2/3VCC, the flip-flop resets, the output of the 555 pin 3 outputs a low level, and the discharge switch tube is turned on; when the input signal is from 2 The input of the pin is lower than 1/3VCC, the trigger is reset, the 3 pin of 555 outputs high level, and the discharge switch tube is cut off. RD is the reset terminal (4 pins). When RD=0, 555 outputs a low level. Usually the RD end is open or connected to VCC.

AC power failure voice report security power socket circuit diagram

Terminal Block

1 PCB Screw Terminal Block 2 Plug-in Terminal Block 3 PCB Spring Terminal Block 4 Barrier Terminal Block 5 Feed Through Terminal Block.

Terminal block consists of fixed terminal block (hereinafter referred to as socket) and free terminal block (hereinafter referred to as plug). The socket is fixed on the electric parts through its square (round) plate (welding method is also adopted for some), the plug is generally connected with the cable, and the plug and socket are connected by connecting nuts.
The terminal block consists of three basic units: shell, insulator and contact body.
Strictly speaking, terminal block refers to a solid device composed of an insulating base and more than one live part. Each conductive member can be used as a joint point for connecting two or more conductors (wires), and also as a tool for connecting or not connecting conductors (wires) individually. In the literal sense, the terminal block can be thought of as a wiring platform providing terminal or wire connection. The terminal block can be a combination type or a single-piece design. The combined terminal block is stacked in the way similar to the block combination, and the two ends are added with side covers and locked and fixed with screws. As for the single terminal block, the combination process mentioned above is not necessary, and it can be used alone.

Terminal Block Series

ShenZhen Antenk Electronics Co,Ltd , https://www.antenkcon.com