Showing posts with label 5v. Show all posts
Showing posts with label 5v. Show all posts
Saturday, December 21, 2013
5V Regulated Power Supply Circuit Diagram
This is a small +5V regulated power supply circuit. In that case here we used 7805 Voltage Regulator IC. 7805 is a +5 Volt regulator IC from 78xx chips family. The circuit has internal current limiting and thermal protection capacity. A 9V 2A steps down transformer is used to covert 230V to 9V from mains. Here used a bridge rectifier made by four 1N 4007 diode to convert AC-DC . 470uF 50v as C1 is used for filtering. This circuit is very easy to build. For good performance recommended input voltage 8V-18V. If over 400mA current is needed at output then use a heat sink with the 7805 IC.
Circuit diagram of 5V Regulated Power Supply
 |
| Fig-1: 5V regulated power supply schematic |
Pin Diagram of IC 7805
 |
| Fig2:Pin Diagram of IC 7805 |
Wednesday, April 10, 2013
5V 2A Dc Converter Using LT3980
Using LT3980 manufactured by Linear Technology can be designed a very simple 5 volts dc converter circuit.
5V 2A Dc Converter Circuit Diagram
The LT3980 has an adjustable frequency from 100kHz to 2.4MHz and accepts input voltages up to 58V . The transient voltage of the LT3980 is around 80 volts . The maximum output current which can be delivered by the LT3980 monolithic buck switching regulator is around 2 Amps .
Main features of the LT3980 monolithic buck switching regulator are : wide input range from 3.6V to 58V , overvoltage lockout protects circuits through 80V transients , 2A Maximum Output Current , low ripple (<15mVP-P) Burst Mode, aAdjustable switching frequency: 100kHz to 2.4MHz ,low shutdown current: IQ < 1μA, thermal protection, Soft-Start Capability . Link
5V 2A Dc Converter Circuit Diagram
The LT3980 has an adjustable frequency from 100kHz to 2.4MHz and accepts input voltages up to 58V . The transient voltage of the LT3980 is around 80 volts . The maximum output current which can be delivered by the LT3980 monolithic buck switching regulator is around 2 Amps .
Main features of the LT3980 monolithic buck switching regulator are : wide input range from 3.6V to 58V , overvoltage lockout protects circuits through 80V transients , 2A Maximum Output Current , low ripple (<15mVP-P) Burst Mode, aAdjustable switching frequency: 100kHz to 2.4MHz ,low shutdown current: IQ < 1μA, thermal protection, Soft-Start Capability . Link
Subscribe to:
Posts (Atom)