Power Projects
Li-Ion Charger
Description The LP2951 regulator is manufactured by National Semiconductors.
Lead Acid Battery Charger #2
Description The above pictured schematic diagram is just a standard constant current model with a added current limiter, consisting of Q1, R1, and R4.
Lead Acid Battery Charger #1
Description Except for use as a normal Battery Charger, this circuit is perfect to ‘constant-charge’ a 12-Volt Lead-Acid Battery, like the one in your flight box, and keep it in optimum charged condition.
Simple 78xx Current Booster
Description Voltage regulators such as the LM78xx, and LM317 series (and others) sometimes need to provide a little bit more current then they actually can handle.
1.2v LED Flasher – Joule thief
This is a 1.2-volt single transistor flyback (Joule Thief) circuit that features a third coil.
13.8V/40A Stabilized Power Supply
This power supply was designed for ham-radio use and has been in operation for over 10 years.
Dual Voltage Power Supply
Description The following circuit Diagram of (DUAL VOLTAGE POWER SUPPLY ) can be used for Misc..
1.2 – 15V/3A adjustable regulated power supply
Specifications This kit provides a variable output power supply ranging from 1.2 to 15 V @ 3 A.
Pulse Charger for reviving tired Lead Acid batteries
Description If you own a motorcycle, a motor home, a caravan, a lawn mover, a day cruiser or maybe a vintage car you must at some point had to write off a lead acid battery.
400VA AC Light Dimmer
Schematic Description This is a simple TRIAC AC load dimmer used to control the power of a resistive load such as incandescent lamp or heater element.
3-30 V/2.5 A Stabilized power supply
Copyright of this circuit belongs to smart kit electronics.
0-50V 2A Bench power supply
I use the lm10 IC because it has a reference voltage and thats useful for dc power supply.