13.8V 20A Transformerless Power Supply Circuit This PSU has been abnormally advised for current-hungry ham radio transceivers. It delivers cautiously about 20Amps at 13.8V. For lower currents, a abstracted accepted attached output, able of 15ma up to a absolute of 20A has been added. Let us see what we accept got here. The ability agent [...]
10 W Bass-boost Audio Amplifier Schematic Description: This architecture is based on the 18 Watt Audio Amplifier, and was developed mainly to amuse the requests of correspondents clumsy to locate the TLE2141C chip. It uses the boundless NE5532 Dual IC but, obviously, its ability achievement will be comprised in the 9.5 – 11.5W range, as [...]
The converter uses no filters and is thus pretty broadbanded. All selectivity is trusted to the DB6NT converter and the Yaesu radio. The power supply is regulated by a three terminal voltage regulator, so the frequency won’t shift with input voltage fluctuations. The converter applies 13.8V to the coax line going to the antenna-mounted converter, [...]
Low cost solution for charging of both NiCd and NiMh batteries Here is the circuit diagram of a low cost universal charger for NiCD – NiMH batteries. This circuit is Ideal for car use. It has ability to transform a mains adapter in to a charger . This one can be used to charge cellular [...]
Izahr Fareed http://www.Circuit-Lab.com ExtremeCircuits.Blogspot.Com Charge your iPod without connecting it to a computer! Using the USB port on your computer to charge your player’s batteries is not always practical. What if you do not have a computer available at the time or if you do not want to power up a computer just for charging? [...]
This Batteries Charger is intended for charging sealed lead-acid batteries with a solar panel in small and portable applications. The customary diode that prevents the battery from discharging through the solar panel has been replaced by a FET-comparator combination. The batteries charger will stop charging once a pre-set voltage (temperature compensated) has been reached, and [...]
This DC-DC converter circuit designed to accept a range of input voltages that are present in a car’s electrical system, and provide a stable regulated voltage output of 12v. Nominally, the battery voltage is about 13.8v, but when the car engine is being started, the voltage can often droop down to 6 or 7 volts [...]
