Multi Voltage Regulator | Electronic Project Circuits

Posts Tagged ‘multi voltage regulator’

Multi level power supply with 78xx series

This is an electrical circuit to supply DC power positive and negative. It also has multiple power levels as well. The equipment it easy to buy and affordable.
Operation of this circuit, when T1 was to convert the AC voltage from 220 volts down to 15 volts, and D1-D4 connected to circuit Direct Contact bridge rectifier . Will act as a rectifier AC DC Then C1, C2, C5 and C6 serve filtered flows smooth and then, through to the leg 1 (Vin) of IC1 and IC2. By IC1 (LM7812) acts Direct loans isolate pressure for reduced + 12 volt and IC2 (LM7912) Direct loan serves to isolate pressure reduced to -12 volts passed through the pin 3 (Vout) of IC1 and IC2. and will be filtered to flow. more smooth with C3, C4, C7 and C8, which is the output voltage at +12 volts and -12 volts.
When T2 convert AC voltage from 220 volts down to 9 volt and D5-D8 of the circuit is Direct Contact Fire bridge. Will act as a rectifier AC DC After that, C9, C10, C13 and C14 is responsible for smoothing filter and then flows through to the leg 1 (Vin) of the IC3, and IC4. By IC3 (7805) Direct loan serves to isolate voltage down to +5. V and IC4 (7905) Direct loan serves to isolate pressure pressure reduced to -5 volt transmission out of leg 3 (Vout) of the IC3, and IC4 is filtered and flows more smooth. with C11, C12, C15 and C16. which makes the output voltage of +5 volts and -5 volts.

Be the first to comment - What do you think? Posted by admin - January 19, 2011 at 9:23 am

Categories: Power supply Tags: 12V dual power supply, IC 7905, multi voltage regulator

Convert two-level DC voltage 5V, 12V

Work cycle is entering AC Current power supply 220Volt the transformer T1 will convert AC to lower left 9V will be switched from AC power into DC with D1-D4 connected to circuit Rex Comment fire Bridge Terminal. (Bridge-Regtifier) will be Current Filter to smooth further the capacitor C1, which at this point can be used as Vout by’ll volt approximately 12Volt the output level one will be diode D5 acts to prevent AC voltage. through the connection of the output level will be a DC current flowing into pin 1 of IC1 by IC1 acts as the regulated voltage to 5 volts out in three legs of IC1, the output level.
The second capacitor C2 and C3 is a current filter to smooth more.

Be the first to comment - What do you think? Posted by admin - June 5, 2010 at 8:29 am

Categories: DC converter, Power supply Tags: ac to dc converter circuit, multi voltage regulator, step down converter

Simple step down dc converter multi voltage

This again the one circuit that can is dc regulator the many voltage get simplely. Or Simple step down dc converter multi voltage. By have R1 be formed fix the size of current, when Q1 2N3904 work by voltage output equal to volt at a pin B of Q1 2N3904. When compare with ground. Which volt be under zener diode the connection and a pin B of Q1. It can fix dc voltage many the level Vout : 3V that sizes have from VZD1, Vout = 6V Volt , fall straddle ZD1+ZD2, Vout 9V volt fall straddle ZD1+ZD2+ZD3, Vout 12V Volt fall straddle ZD1+ZD2+ZD3+ZD4.