12vdc Power Supply | Electronic Project Circuits

Posts Tagged ‘12vdc power supply’

5V-12V Multiple Supply Switching regulator by L4970 and L4974A

Today take Multiple Supply Switching regulator Circuit. Come to deposit friends keep see in rows think out it can give Voltage supply about 5V 10A and 12V 3.5A. In same circuit by the character of Switching Regulator at use integrated readymade circuit. Work the character Synchronization between IC L4970 and L4974A. When friends see circuit think use a little many equipments. A friend feeds power supply input 35V 10A min just one group can give voltage output follow want. By the L1 use 80 uH sizes and , L2 = 300uH. The detail is other , request friends , see in the circuit please yes.

Be the first to comment - What do you think? Posted by admin - September 27, 2008 at 8:16 am

Categories: High current power supply, Power supply, Switching power supply Tags: 12vdc power supply, L4970, Multiple Supply, switching regulator

12V linear regulator for Transceiver Radio

This circuit is 12V linear regulator for the receiver radios model transistor. which with regard to often use current the very. Especially when do signalling . The 2N3055 transistors that use in place circuit s pay electric this power. Then must pay the electric current has very much. For a resister R1 in the circuit will perform to decrease the quantity will of the electric power to will lose to go to down and make can use cheap transistor get . And in value filtration R1. As a result have Voltage fall straddle all about 2 Volt. The Zener Diode use 12.7V values or 12.6V 1Watt. This circuit size builds easy then convenient for friends. At a novice and seek easy equipment certainly. And still can pay the electric current has about 2 Amp. Request to have fun 12V linear regulator for Transceiver Radio circuits please sir.

Be the first to comment - What do you think? Posted by admin - September 12, 2008 at 8:24 am

Categories: Power supply Tags: 12V voltage regulator, 12vdc power supply, linear regulator

MC33167T switching regulator 5V 5A/-5V ,12V /-12V

This is circuit Switching power supply for MP3 player for automobile. It is powersupply that can be operated from the 12V battery of the car. The supply uses the Motorola MC33167T switching regulator operating at 72 kHz. And consists of a 5V/-5V section and a 12V/-12V section. This to use the small space in my enclosure more flexible.

I See circuit on website many. I link good site :http://home.concepts-ict.nl/~cybersake/carmp3/ about Supply for MP3player. Very good for all user.

Detail in web::
I worked on a project to build an MP3 player for my automobile. I needed a PC powersupply that can be operated from the 12V battery of my car. I studied some datasheets and rolled my own switched mode power supply (SMPS). The supply operates with a battery voltage of 7.5V to 20V (Limited by a transiënt suppressor). The supply can be used with a 24V battery when you replace the transiënt suppressor by a 30V type. The 12V and -12V section has a nice feature: It operates in step-up mode when the input voltage goes below 12V. My supply uses the Motorola MC33167T switching regulator operating at 72 kHz. The supply consists of a 5V/-5V section and a 12V/-12V section. This to use the small space in my enclosure more flexible.

I See circuit on website many. I link good site :http://home.concepts-ict.nl/~cybersake/carmp3/ about Supply for MP3player. Very good for all user.