What is Voltage regulator: Definition and 68 Discussions
A voltage regulator is a system designed to automatically maintain a constant voltage. A voltage regulator may use a simple feed-forward design or may include negative feedback. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages.
Electronic voltage regulators are found in devices such as computer power supplies where they stabilize the DC voltages used by the processor and other elements. In automobile alternators and central power station generator plants, voltage regulators control the output of the plant. In an electric power distribution system, voltage regulators may be installed at a substation or along distribution lines so that all customers receive steady voltage independent of how much power is drawn from the line.
Hi!
I'm working on designing my own voltage regulator circuit by using LM7805.
From what I found from website the capacitors connected parallel between common leg and input and common leg and output,its values varies from one website to another.
Actually how to determine what capacitor...
Hi Everyone,
I need to design an adjustable voltage regulator without using an IC. Does anybody could give me a source that can help me?
Input will vary between 10-15 volts... And output will be adjustable between 4-6 volts.
Line and Load regulations must be around %1
Need your help...
The voltage regulator have 3 legs, 2 for input and one for output to make a constant voltage.
I was wondering if this is possible?
2 x input of 12v and can the output be 24v or only under 12v?
thanks
I am making a power supply and am using a lm338k to regulate a variable voltage from 2 to 30 volts. I also want to put in current limiting, preferably variable, up to 5 amps since that's what the lm338k is rated at. Since the resistances in the current limiting circuit need to vary when the...
I am to design a simple voltage regulator(resistors only) to deliver 7.00 volts to a load with a 10v power supply. The circuit will be 1 resistor in series with two parallel resistors. The last parallel resistor being Rload (which can vary from 1000 to 1500 ohms).
Through experiment, I found...
Hi,
My problem is very simple, I have a project in which I have to design a voltage regulator out of discrete BJTs, Zeners and resistors etc. the only limitation is that I cannot use an IC. I would prefer not using a zener because i would like to make the output variable through a voltage...
hey guys, I've got to make a voltage regulator for a uni project. it has to use hysterisis and produce 9v out from a 16Vrms AC powerpack over a 15 ohm load. It also needs overload protection, I've drawn up the attached circuit, i think it will work and filled in some of the values i know but I...
I'm working on a design that requires me to control the output voltage on a line that will be used to drive a motor or other item.
http://www.az-prod.com/vregcheck.jpg"
The above link goes to the schematic I have in mind. Please ignore the MOSFET symbols, I'm pretty sure I used a...
Could anybody please assist me.
I need to regulate 12 volts dc from a car battery down to 1.24 volts dc yet I still need to be able to draw 12 - 15 amps. Ideally I would like to be able to adjust the voltage. Does anybody have any ideas how I will be able to achieve this & if so, what...
This may be a dumb question but I guess it won't hurt to ask. Is there a reason to use a voltage regulator to obtain a lower voltage from a certain set power supply voltage over using a voltage divider? I guess I'm talking low voltage applications in circuits not high power electronics.
[SOLVED] Voltage regulator
Homework Statement
This isn't a homework or coursework question. It's just a general question. I have a circuit with a 15V power supply. The output has to be 12V. I've inserted a blocking diode to prevent current flowing in the opposite direction.
The problem I'm...
I was going to use a +5V Fixed-Voltage Regulator 7805, for a project until I noticed that I need 2 amps and the 7805 can supply at max 1 amp. what can I do?
hi guys
need some component that will take in 12 VDC and put out a negative 5V AND a positive 5V - just a very simple component - a part number would be great - thanks
Hi,
I started a project a few months ago to replace the voltage regulator on my car's alternator but I had to stop due to lack of knowledge and testing ideas.
I've since learned a lot more about electronics and have decided to pick it up again. Straight away I've made a design change after...
Looking to drop a 10v Li-on battery to 6v DC. What is the most efficient way without to much wasted power. Adjustable voltage regulator? diodes?,
something else? needs to be small. Thanks
I need to design a voltage regulator circuit to provide a constant voltage of 5V to a load from a variable supply voltage. The load current carries from 0 to 100 mA and the source voltage varies from 8 to 10 V. You may assume that ideal Zener diodes are available. Resistors of any value can...
Hello all,
I am looking to build a small varible voltage regulator that I can control from the inside my vehichle, that will allow me to control the voltage of my 320 Amp Leece Neville stand alone alternator... Currently I use this alternator to power my amplifiers that will handle up to...
Hell oI am a car audio installer. we have a incar video monitor that has a voltage limitation of 12v +/- 15%. problem that arises is that below say 11.5 it won't turn on, if above say 13.8 It shuts off, If the voltage is low it gets lines running through it, if there is enough to allow it to...