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
DARPA's Chip Office Reboots to Tackle Cost & Complexity
DARPA's Microelectronics Technology Office, the source of much chip innovation...
eetimes.com
Mentor Launches Xpedition PCB Data Management Solution
The new Xpedition data management solution will ensure flow-wide PCB...
eetimes.com
Juggling a Cornucopia of Projects
Max is juggling so many hobby projects that it's no...
eetimes.com
Develop & Share Open-Source Hardware Projects
Matlab and Simulink are finding use in projects that don't...
eetimes.com
Android Open-Source for ARMv8-A Starts 64-Bit Avalanche
Mobile devices will need a big boost in processing power...
eetimes.com
Find an Entrepreneurial Mentor
As Luke had his Yoda, so does a startup CEO...
eetimes.com
Are We Ready to Give Up Driving?
In a Strategy Analytics survey, 40% of Americans said they...
eetimes.com
Broadcom Cuts 2,500 jobs
Broadcom announced plans to cut 2,500 jobs, 20% of its...
eetimes.com
AMS, Dialog Merger Talks Fail
Talks over a possible merger of mixed-signal chip companies AMS...
eetimes.com
The Risks & Rewards of Early Tapeout
Verification remains a key issue in system-on-chip development. The time...
eetimes.com
Nikola Tesla, Vincent Van Gogh & the Second Renaissance
Tesla was alive at the same time as Vincent! Both...
eetimes.com
Future of PCM: Optoelectronic?
Work by a team at the University of Oxford and...
eetimes.com
Mobile Uptick Ahead, Says ARM
Mobile device shipments are rebounding from a slump, but challenges...
eetimes.com
EEVblog #643 – Mailbag
Mailbag Monday Spoilers: Dual voltage source selection circuit Casio FX-7000G...
eevblog.com
Nvidia Raises Android Gaming Ante
The Nvidia Tegra K1 inside the Xaomi MiPad and now...
eetimes.com
Learn Signal Integrity Online
Signal-integrity evangelist Eric Bogatin's classes are now available through an...
eetimes.com
25G Ethernet on Tap at IEEE
In the wake of a June launch for an industry...
eetimes.com
NAND Suit: Toshiba Seeks $1.1B From SK Hynix
South Korea's SK Hynix Inc. disclosed in a regulatory filing...
eetimes.com
Cloud-Based Chip Design Research & Education
Semiconductor Research and Silicon Cloud give chip designers global reach....
eetimes.com
Is Your Processor IP ISO 26262-Compliant?
With the growth in ADAS and the growing demand for...
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 +