Wiring Diagram Remote Control

Showing posts with label switching. Show all posts

Saturday, October 11, 2014

How to Repairing Switching Power Supply

Up to date power supply are renowned as "switching controller power supply." In most swapping supply, the 110 volt AC input is first rectified by two diodes and filtered by a pair of capacitors. This conceives two high- voltage causes; one positive and the other negative. A pair of transistors is then utilized to switch these high voltage supply over the primary winding of a transformer.

This switching activity is very fast. A usual switching pace is around 40,000 circuits per second or 40KHz. An integrated circuit is commonly utilised to control the transistors. This IC not only controls the pace at which the transistors are swapped, but furthermore controls the amount of time that each transistor is energized. The yield voltage of the power supply is very resolute by the "on" time of the transistors. If the transistors are hold on for a longer time span of time, the output voltage of the provide will rise, while shorter times smaller the yield voltage. This is renowned as "pulse-width modulation."

Power Supply

Wednesday, January 29, 2014

Low power switching regulator

This circuit is a simple battery-powered switching regulator provides 5V out from a 9V source with 80% efficiency and 50-mA output capability. When Q1 is oon , its collector voltage rises , forcing current trhough the iinductor. The output voltage rises , causing A1s output to rise . Q1 cutts off and the output drops low enough for A1 to turn Q1. The 1 uF capacitor ensures low battery impedance at high frequencies , preventing sag during switching. See schematic diagram below :

Saturday, December 21, 2013

Adjustable switching power supply

This circuit supplying current maximum10A with an adjustable output voltage from 0-25 VDC. Adjustable Switching Regulator L4970 Series is built with the main component as a Switching Regulator IC L4970.

Switching Regulator L4970 series include not complicated to make his own, which need to be considered is the IC L4970 require sufficient cooling to operate in an optimal and durable. Adjustable Switching Regulator L4970 series are complete can be seen in thethe following figure .

Adjustable switching power supply schematics

To set the output voltage range Adjustable Switching Regulator L4970 can be in control by adjusting the potentiometer 18KOhm tus.

Tuesday, December 10, 2013

90 Watt Switching Power Supply

Switching Power Supply in this article are able to supply power 90 Watt. Switching Power Supply series is built directly from an AC network system using special IC MC33374 switching power supply in the form of High Voltage Power Switching Regulator and with external components to the other.

IC MC33374 IC is a switching power supply designed to operate with an AC voltage source and works as a power switching converter with flyback technique. Switching Power Supply Series has a 15 volt DC output with current up to 6 Ampere.

90 Watt Switching Power Supply Schematic

Series 90 Watt Switching Power Supply works by menyearahkan AC source is then used to activate the converter MC33374 system. The output of transformer switching converter MC33374 searahkan again later on as a DC voltage supply to be used for electronic devices.

Monday, December 9, 2013

Preamplifier Switching Center Module

Parts
R1,R2,R3,R4____100K  1/4W Resistors
R5_____________560R  1/4W Resistor

SW1,SW2________2 poles 4 ways Rotary Switches

J1 to J6_______RCA audio input sockets

This Module can be a all-important accession to the Modular Preamplifier Control Center back added than two sources charge to be affiliated to the preamplifier chain.

Four aerial akin inputs can be alleged by agency of SW1 and baffled to the output. The achievement of this bore charge be affiliated by a acceptable cable to one of the two inputs of the Control Center module. In this way, a absolute of bristles inputs will be accessible to the user of this bore combination.

The Switching Control appearance additionally the so alleged "Double Bar", i.e. the achievability of acquisition to an alien unit, e.g. a recorder (tape or digital) an ascribe arresting altered from that reproduced at the time by the amplifier.

For example, you can accept in to a CD admitting the arresting advancing from a radio base through the Tuner is baffled to the recorder. This alternative is operated by agency of SW2.

As with the added modules of this series, anniversary cyberbanking lath can be adapted into a accepted enclosure: Hammond extruded aluminum cases are able-bodied ill-fitted to host the boards of this preamp. In particular, the cases sized 16 x 10.3 x 5.3 cm or 22 x 10.3 x 5.3 cm accept a actual acceptable attending back stacked. See beneath an archetype of the accessible adjustment of the advanced and rear panels of this module.

Notes:

No power supply is necessary for this module
The circuit diagram shows the Left channel only, so all the parts must be doubled except SW1 and SW2 which are double pole switches, i.e. ready for stereo.