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12V, 5 Amp SMPS Battery Charger Circuit

Last Updated on January 19, 2025 by Swagatam 494 Comments

12v2B52Bamp2Btransformerless2Bbattery2Bcharger2Bcircuit

In this article we study a simple flyback based converter design which is implemented as an SMPS 12V, 5amp battery charger power supply, without using a iron core transformer. How it Works The proposed 12V, 5 amp smps battery charger circuit employs a flyback converter topology which results in the required smps based high current, […]

Filed Under: Battery Charger Circuits Tagged With: 12V, Battery, Charger, SMPS

SMPS 50 watt LED Street Light Driver Circuit

Last Updated on January 8, 2024 by Swagatam 19 Comments

The post presents an SMPS based LED street lamp driver circuit which can be used for driving any LED lamp design right from 10 watts to 50 watts plus. Using the IC L6565 The proposed 50 watt (and higher) LED street light driver circuit uses the IC L6565 as the main control device, which is […]

Filed Under: Power Supply Circuits Tagged With: Driver, LED, Light, SMPS, Street, Watt

220V SMPS Cell Phone Charger Circuit

Last Updated on January 19, 2025 by Swagatam 220 Comments

cell phone charger circuit

In this post I have explained how to make a simple, cheap yet extremely reliable smps based 220V/120V mains operated cell phone charger circuit. Why TNYxxx Tiny Switch is Used The TNY series of tiny switch ICs provide us with an option of making perhaps the smallest possible smps circuits with high reliability. The tiny […]

Filed Under: Power Supply Circuits Tagged With: 220V, Cell, Charger, Phone, SMPS

12V, 24V, 1 Amp MOSFET SMPS Circuit

Last Updated on January 18, 2025 by Swagatam 64 Comments

IMG0267A 2

The post investigates a cheap Chinese made 12V, 1 amp MOSFET based smps circuit which can be modified into 24V 1 amp, or 12V 2 amp smps circuits also. The MOSFET used is STB9NK60Z which is a highly advanced, rugged 600V 7A device specially manufactured for high, unpredictable, voltage environment circuit applications. Reverse Engineering a 12V […]

Filed Under: Power Supply Circuits Tagged With: 12V, 24v, MOSFET, SMPS

Convert SMPS into a Solar Charger

Last Updated on January 3, 2024 by Swagatam 47 Comments

chargingbatteryfromsmpssolarchargercircuit.

In this post I have explained how to convert smps into a solar charger circuit. The method will result in an extremely efficient and fast solar charging of the connected battery. SMPS Solar Chargers SMPSs have become very common nowadays and we find them being used in the form of AC to DC adapters wherever […]

Filed Under: Battery Charger Circuits, Solar Controller Circuits Tagged With: Charger, Convert, SMPS, Solar

5V, 12V Buck Converter Circuit SMPS 220V

Last Updated on March 4, 2025 by Swagatam 44 Comments

This step down buck converter will convert a 220V AC input from mains supply to 5V or 12V or 24V DC with 90% efficiency. The proposed buck converter is an SMPS circuit using the IC VIPer12A from STMicroelectronics. The circuit uses negligible number of external components yet is able to operate directly from mains AC input. The Buck […]

Filed Under: Power Supply Circuits Tagged With: 12V, 220V, Buck, Converter, SMPS

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