Power supply circuits - related electronic projects and circuit diagrams (schematics), this helps you finding desired informations and facilitates your site navigation through all articles database. In every website page you will find a special section (at the beginning or the end) with tags just like this and also different tags associated with the current article. Tags inter-links stories with related Power supply articles.
This is a very interesting a.c. voltage stabilizer that uses a LDR or photoresistor to stabilize an alternating current (AC).
This variable Zener diode circuit acts like a Zener diode with a breakdown voltage adjustable in a vast domain. The current through the voltage divider R1 and R2 must be higher current through the voltage divider should be higher compared with that of the transistors base. It depends only by R1 and has been set to 8 mA.
Safe 12V car adapter described here can be used to limit a +12 volt car battery current, available from the in-dash cigar lighter power port, to below 2.6 Amperes for use with portable electronic gadgets and travel chargers on long car journeys. This circuit will protect the car electric system against possible short circuits across the cigar power port.
This 5 volts Switch Mode Power Supply circuit use the IC from National Semiconductor has been producing and designing ICs for use in switch-mode power supplies for many years. The application of these devices is normally straightforward, helped by the excellent documentation that is available. A typical example of a switch-mode power supply is that based on the LM2671 or LM2674.
