5A Power Supply 1.2-25V
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How to Build a Low Cost and Efficient Transformerless Power Supply
Are you tired of including bulky transformers to power smaller circuits? Two simple and useful configurations of small and compact power supplies using high voltage capacitors are discussed here, as well as one attempted - and failed - experiment. The first one though very compact is not spike free and not isolated from AC mains, therefore is not very practical. The second one is able to cancel of the spikes but still is dangerous as it’s not free from electric shock. The last one, was hoped…
3 Multi voltage power supply circuit | Electronics Projects Circuits
Look Multi voltage power supply circuit. Dual output,5V,12V,30V,45V, 60V, and ground. At 1A. Use ICs, transistors, Zener diode. Easy builds.
How to build 12V Fan Directly on 220V AC - circuit diagram
This circuit idea is certainly not new, but when it comes to making a trade-of between using a small, short-circuit proof transformer or a capacitive voltage divider (directly from 230 V mains voltage) as the power supply for a fan, it can come in very handy. If forced cooling is an afterthought and the available options are limited then perhaps there is no other choice. At low currents a capacitive divider requires less space than a small, short-circuit proof transformer.
Transformerless Power Supply.
Simple, low cost and easy to build power supply. Ideal for applications that doesn't requiere too much power. (5/28/2006)
Simple soft start Circuit 220V - Electronics Projects Circuits
Especially high value capacitors used for power supply, soft start circuit in SMPS circuits 220v line that is used in this circuit one 220V, we also like
Módulo de conmutación con MOSFET para sistema fotovoltaico | Inventable
Proyecto DIY para la realización de un módulo de conmutación con MOSFET para sistema fotovoltaico de 12V a baja potencia.
15€ Einschaltautomatik mit Nachlauf für z.B deine Bosch PTS 10 Absaugung !
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Simple Ni-Cd Battery Charger
Simple Ni-Cd Battery Charger: The charger has the following specs and characteristic: 1. Simple and minimal parts thus good for beginners and hobbyist. 2. Can be used to charge Ni-Cd of different voltages (2.4V, 3.6V, 7.2V, and other battery voltage) 3. Automatic with battery ...