Power Supply Circuits

  

Linear power supplies work by getting the 127 V or 220 V from the power grid and lowering it to a lower value (e.g. 12 V) using a transformer. This lower voltage is still AC. Then rectification is done by a set of diodes, transforming this AC voltage into pulsating voltage. The next step is filtering, which is done by an electrolytic capacitor, transforming this pulsating voltage into almost DC.On high-frequency switching power supplies, the input voltage has its frequency increased before going into the transformer (10-20 KHz are typical values). A power supply of good quality and with enough capacity can increase the durability of your equipment. Just to have an idea, a high-quality power supply will cost less than 5% of the PC total amount. On the other hand, a low-quality power supply can cause several intermittent problems, which are mostly difficult to be solved.Although linear power supplies work very well for several low-power applications – cordless phones and video games consoles are two applications that come in mind –, when high power is needed, linear power supplies can be literally very big for the task.

 

 

News

Stretchable transistor could be a second skin

physicsworld.com Stretchable transistor could be a second skin physicsworld.com The quest for stretchable electronic devices has led researchers to use tiny silicon "chiplets" encased within stretchable...

Jan 16, 2017

Disruption in power supply due to glitches, construction works

The Kathmandu Post Disruption in power supply due to glitches, construction works The Kathmandu Post NEA has said the ongoing process of charging Khimti-Dhalkebhar transmission line and works to upgrade Dhalkhebhar...

Jan 14, 2017

Properly ground your circuits

Properly ground your circuits EDN.com Ground is the one place in an electronic system that is a reference point from which we measure voltages. If that's the only definition, then what are these other things called...

Jan 8, 2017

Low Cost Platform Allows Prototyping Wearables with Ease

DesignNews Low Cost Platform Allows Prototyping Wearables with Ease DesignNews ... designers, and engineers by half circle solder pads that surround the Flora's perimeter. In addition, a reset switch, mini USB,...

Jan 4, 2017

AI and Manufacturing Concepts Can Be Explored with a Desktop Robotic Arm

DesignNews AI and Manufacturing Concepts Can Be Explored with a Desktop Robotic Arm DesignNews The power supply provides the necessary electrical voltage to operate the electronics and electromechanical components...

Dec 20, 2016

Samsung Electro-Mechanics eyes profit from commercialization of PLP

pulse Samsung Electro-Mechanics eyes profit from commercialization of PLP pulse MLCC and PLP are crucial in the manufacturing of display panels. MLCC that ensures highly stable power supply also supports electronics...

Jan 10, 2017

Enniskillen tech firm Elite Electronics surges forward as profits double

the Irish News Enniskillen tech firm Elite Electronics surges forward as profits double the Irish News ENNISKILLEN-based tech company Elite Electronic Systems, which in 2009 the firm secured a contract to provide...

Jan 9, 2017

10 Year Anniversary Of Crippling Ice Storm

KTTS 10 Year Anniversary Of Crippling Ice Storm KTTS While snow does not usually affect power supply , ice storms are among the most devastating weather events that can hit the electric power supply grid. ... Turn...

Jan 12, 2017

ProLogium Named as CES 2017 Innovation Awards Honoree

ProLogium Named as CES 2017 Innovation Awards Honoree Digitimes Products entered in this prestigious program are judged by a preeminent panel of independent industrial designers, independent engineers and members of the...

Dec 21, 2016

Triad WAU Wall Plug-In AC Power Supply May Be First to Meet Level VI Energy Efficiency Standard

Triad WAU Wall Plug-In AC Power Supply May Be First to Meet Level VI Energy Efficiency Standard ThomasNet News (press release) (blog) Perris, CA - October 18, 2016 - With its green-friendly power design, the new advanced...

Jan 12, 2017

Units & Modules