Quantcast LOAD REGULATION

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
3-35 receiver, the load on a particular power supply may depend on the brightness of the screen, the control settings, or even the channel selected. These variations in load resistance tend to change the applied dc voltage because the power supply has a fixed internal resistance. If the load resistance decreases, the internal resistance of the power supply drops more voltage. This causes a decrease in the voltage across the load. Many circuits are designed to operate with a particular supply voltage. When the supply voltage changes, the operation of the circuit may be adversely affected. Consequently, some types of equipment must have power supplies that produce the same output voltage regardless of changes in the load resistance or changes in the ac line voltage. This constant supply of power may be achieved by adding a circuit called the VOLTAGE REGULATOR at the output of the filter. LOAD REGULATION A commonly used FIGURE OF MERIT for a power supply is its PERCENT OF REGULATION. The figure of merit gives us an indication of how much the output voltage changes over a range of load resistance values. The percent of regulation aids us in determining of the type of load regulation needed. Percent of regulation is determined by the equation: This equation compares the change in output voltage at the two loading extremes to the voltage produced at full loading. For example, assume that a power supply produces 12 volts when the load current is zero. If the output voltage drops to 10 volts when full load current flows, then the percent of regulation is: Ideally, the output voltage should not change over the full range of operation. That is, a 12-volt power supply should produce 12 volts at no load, at full load, and at all points in between. In this case, the percent of regulation would be:


Electrical News
The Problem with Big Data, Part 2
We need some mechanism to lower the temperature in political...
eetimes.com
Soft Starters Spare Wear & Tear on Motors, Help Control Peak Energy Usage
Soft starter technology has become a way to mitigate startup...
eetimes.com
Startup Cracks User-Centric Surround Sound
French startup 3D Sound Labs is now taking pre-orders for...
eetimes.com
Earth Day Leaders: Top 9 Green OEM Brands
Take a look at this list of electronics OEMs that...
eetimes.com
HP Debuts New Campus Switch Modules, SDN App
HP products are among the many new technologies launching at...
eetimes.com
The Changing Face of Computer Storage
The newest storage innovations will change how things are done...
eetimes.com
Multicore Basics for Single Core MCU Developers
A multicore reference with the latest in software and hardware...
eetimes.com
High-End PCB Design Made Affordable
Mentor's new PADS family targets independent engineers with lower cost...
eetimes.com
The Auctioning of Apollo
Occasionally, an item from the glory days of the Apollo...
eetimes.com
EEVblog #738 – Yamaha DME32 Digital Mixer Teardown
What’s inside a professional digital audio mixer? Dave opens a...
eevblog.com
Ruggedized Tire Pressure Sensor Raises Bar
Heavy trucks, buses and construction vehicles can not have the...
eetimes.com
Apple Ticks Up Sales Record
Apple reported record sales for its second quarter but said...
eetimes.com
5G Makes Waves for Asia Giants
The recent 5G Forum USA, held in Palo Alto, Calif.,...
eetimes.com
The Basics of the CE Marking, Continued
Products that fall under a CE marking Directive cannot be...
eetimes.com
EEVblog #737 – World’s Biggest Collection Of Electronics Components
Dave uncovers that has to be one of the world’s...
eevblog.com
ARM Gives Peek at Road Map
ARM disclosed new details of its A72, including three functional...
eetimes.com
Cypress Expands Error Correcting Code For SRAM
As overall SRAM market shrinks, Cypress sees uptick in automotive,...
eetimes.com
EUV Deal Raises Questions
ASML announced it struck a deal to sell 15 EUV...
eetimes.com
Make Field-oriented Motor Control Affordable
Shaft sensors and their wiring make field-oriented motor control pricey,...
eetimes.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +