Quantcast SERIES REGULATOR

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
4-60 This is done by creating a voltage divider of a resistive element in the regulator and the resistance of the load. Regulation is achieved by varying the resistance of the resistive element in the regulator. A SERIES REGULATOR uses a variable resistance in series with the load. Regulation is achieved by varying this resistance either to increase or to decrease the voltage drop across the resistive element of the regulator. Characteristically, the resistance of the variable resistance moves in the same direction as the load. When the resistance of the load increases, the variable resistance of the regulator increases; when load resistance decreases, the variable resistance of the regulator decreases. SHUNT REGULATORS use a variable resistance placed in parallel with the load. Regulation is achieved by keeping the resistance of the load constant. Characteristically the resistance of the shunt moves in the opposite direction of the resistance of the load. The CURRENT LIMITER is a short-circuit protection device that automatically limits the current to a safe value. This is done when the current-limiting transistor senses an increase in load current. At this time the current-limiting transistor decreases the voltage on the base of the pass transistor in the regulator, causing a decrease in its conduction. Therefore, current cannot rise above a safe value. TROUBLESHOOTING is a method of detecting and repairing problems in electronic equipment. Two methods commonly used are the VISUAL CHECK and SIGNAL TRACING. The visual check allows the technician to make a quick check of component problems, such as shorts, discolored or leaky transformers, loose or broken connections, damaged resistors or capacitors, smoking parts, or sparking. The signal tracing method is used when the technician cannot readily see the problem and needs to use test equipment. Component failure is also important in troubleshooting. In transformers and chokes, a winding can open, or two or more windings can short, either to themselves or to the case that is usually grounded. In a capacitor only two things can occur: either it can short and act as a resistor, or it can open, removing it from the circuit. A resistor can open, increase in value, or decrease in value.


Electrical News
Invisibility Cloaks Now Shield People from Sight
Invisibility cloaks are now working in the visible spectrum, someday...
eetimes.com
EEVblog #710 – Intercom System Repair
Join Dave step-by-step as he attempts to find the problem...
eevblog.com
Tabula Set for March Shutdown
Programmable logic company Tabula is rumored to be closing its...
eetimes.com
Sony Joins FDSOI Club
Sony Corp. revealed that the company's next-generation Global Navigation Satellite...
eetimes.com
Hardware Emulation: One Verification Tool, Unending Possibilities
Verification Consultant Lauro Rizzatti explains why hardware emulation really is...
eetimes.com
Belichick's 'DeflateGate' Explanation Falls Flat on Technical Details
Was football's Belichick making sense when describing relationship between temperature...
eetimes.com
DesignCon Shows Off Best in Test
DesignCon award ceremony showcases best chip, board, system-level products excelling...
eetimes.com
Feast Your Orbs on My Vetinari Clock Prototype
Things are really starting to come together with regard to...
eetimes.com
FPGA Debug Goes Outside with New Hardware
For 10 years, Belgium company Byte Paradigm has operated as...
eetimes.com
Qualcomm Outlook Exposes 5 Trouble Spots
Although Qualcomm showed strong Q1 results, the company -- facing...
eetimes.com
Rambus Readies Lensless Image Sensor Platform
Intellectual property licensor Rambus is going to provide a "platform"...
eetimes.com
Friday Quiz: Voltage References
Voltage references are basic building blocks for ADCs and DACs,...
eetimes.com
Supercapbatteries, Thermoelectrics to Power Future Cars
The cars of the future will be powered by supercabatteries...
eetimes.com
Broadcom Flips on Future Set Tops
Broadcom is nestled between traditional cable companies and newer over...
eetimes.com
GaN Pumps Power Revolution
Gallium nitride is ramping up a revolution in power conversion,...
eetimes.com
Introducing USB Type-C -- USB for 21st Century Systems
Industry leaders are poised to start rolling out devices enabled...
eetimes.com
Chinese Walls and Back Doors
Qualcomm and U.S. industry are the losers as China's antitrust...
eetimes.com
Intel 5th Gen vPro Goes 60GHz Wireless
Intel has incorporated Pro Wireless Display (WiDi) and Wireless Docking...
eetimes.com
Backplanes Hit a Wall at 56G
Backplane-based systems are hitting a wall at 56 Gbit/second speeds,...
eetimes.com
Can Kevlar prevent lithium-ion battery fire risks?
University of Michigan researchers have used nanofibers extracted from Kevlar...
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 +