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Completed

STD Soft Latching Power Switch

Soft Latching Power Switch

Project tags

License

GPL 3.0

License: GPL 3.0

Mode:

Mode

Schematic/Simulation

Schematic/Simulation

Unlisted

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Update time: 2024-11-25 12:46:00
Creation time: 2024-01-29 18:18:44
Description

Description

What is a Soft Latching Power Switch?

 

A soft latching power switch is an electronic circuit which allows a power circuit to be turned on/off using a momentary switch and stays in that power stated when the button is pressed until the button is pressed again.

 

Board Features

 

This board features a NE555DR Timing IC that is triggered by a momentary push button switch to turn the power on or off. When the input is connected, an LED will light up to show it is receiving power. When the latching switch is triggered to the on position, a different LED will light up to show power being sent to the output connection.

 

Simulation

 

To see the simulation working, please go to http://tinyurl.com/27jr4lbn

Design Drawing

Design Drawing

schematic diagram
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PCB
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ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier
1 1uF C1 C1206 1 CL31A105KB9LNNC SAMSUNG(三星) LCSC C444884
2 LTST-C150KRKT LED1 LED1206-RD 1 LTST-C150KRKT LITEON(光宝) LCSC C125086
3 LTST-C150TBKT LED2 LED1206-RD_BLUE 1 LTST-C150TBKT LITEON(光宝) LCSC C125088
4 470Ω R1,R5 R1206 2 1206W4J0471T5E UNI-ROYAL(厚声) LCSC C25383
5 10kΩ R2,R3,R4 R1206 3 1206W4F1002T5E UNI-ROYAL(厚声) LCSC C17902
6 TS-1185-C-A-A-A SW1 SW-SMD_L4.0-W3.0-LS5.0-EH 1 TS-1185-C-A-A-A XKB Enterprise LCSC C561518
7 100kHz U1 SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL 1 NE555DR TI(德州仪器) LCSC C7593
8 AO3400_C4748804 Q1 SOT-23_L2.9-W1.3-P1.90-LS2.4-BR 1 AO3400-HXY HXY MOSFET(华轩阳电子) LCSC C4748804

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20241023_163930.mp4

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