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
Memory System Design Methods
Are you working with DDR4? Interested in NVDIMMs? Designing at...
eetimes.com
Makimoto's Wave Revisited for Multicore SoC Design
So predictable was the cycle of standardization and customization in...
eetimes.com
Mobile Benchmarks Need Work
The industry needs to put more effort into building better...
eetimes.com
EEVblog #645 – TRS-80 Model I Retro Computer Teardown
Dave looks inside the most popular microcomputer of the 1970′s,...
eevblog.com
Wearables Sing in Smart Clothes
The future of mainstream wearable technology may be driven by...
eetimes.com
ST Opens MEMS Microphone Test Laboratory
STMicroelectronics NV has set up an anechoic chamber in Taipei,...
eetimes.com
7 Insurance Issues With Your Self-Driving Car
People talk about the significant reduction in automotive insurance rates...
eetimes.com
Microsemi Bolsters FPGA Stance With Mingoa Acquisition
The Mingoa deal demonstrates Microsemi's push to gain market share...
eetimes.com
FAA Rules on Drones vs. Model Aircraft Contested
Proposed FAA dividing line between model aircraft and drones is...
eetimes.com
Think Different, Innovate by Reuse
It's time we slow down the fevered pace of new...
eetimes.com
Space Business Rising, Experts Say
The emerging commercial space sector is making progress but still...
eetimes.com
Connecting Islands of Industrial IoT
The Industrial Internet of Things often starts with a wealth...
eetimes.com
Graphene / Lithium Ion Capacitor Kickstarter BS
I’ve had a lot of people ask me to comment...
eevblog.com
Six Hour Workday? Sign Me Up!
The economists got it wrong when they though productivity gains...
eetimes.com
Geotracker Tags Unlicensed Band
We're tracking a startup budding from San Francisco's Internet of...
eetimes.com
Teardown.com: Amazon Brings Fire to Phone Market
Qualcomm is the primary provider of the key integrated circuits...
eetimes.com
What's That Smell? An App for That Soon, Says Sensirion
With the acquisition of neighbouring cloud business Koubachi AG, Zurich-based...
eetimes.com
Samsung's Silicon Valley Home
Samsung is building a 10-story complex in the heart of...
eetimes.com
Sony Invests in Stacked Image Sensor Manufacturing Capacity
Sony Corp. has said it plans to invest 35 billion...
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 +