High Voltage DC Generator Circuit Diagram

This circuit is fed from a 12-V de power supply. The input to the circuit is then amplified to provide a 10,000-Vdc output. The output of the up-converter is then fed into a 10 stage, high-voltage multiplier to produce an output of 10,000 Vdc.

High Voltage DC Generator Circuit Diagram

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Precision Full Wave Ac Dc Converter Circuit Diagram

A dc level is produced that corresponds to the ac input rms value (if sine wave), -i set the gain of IC2 to 1.11. This factor is the average-to-rms conversion factor. IC1 and IC2 act as a full-wave rectifier circuit, with Dl and D2. 

Precision Full-Wave Ac/Dc Converter Circuit Diagram

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DC Motor Speed Controller

This circuit takes benefit of the voltage drop across bridge rectifier diodes to provide a 5-position variable voltage supply to a DC fan or other small DC motor. It is not as environment friendly as a change-mode circuit but it has the advantages of simplicity and no swaping hash. The 4 full-wave bridges are linked so that every has two pairs of sequence diodes in parallel, giving a voltage drop of about 1.4V, relying on the burden present.

Circuit diagram:

DC Motor Speed Controller Circuit Diagram

The rotary swap should have \"make before break\" contacts which will have to be rated to take presents as a lot as about an amp or so. For better currents, better rated bridge rectifiers and a suitably rugged rotary swap (or solenoids) will most definitely be required. If you want to have smaller voltage steps, that you must use the commoned AC inputs on the bridge rectifiers to provide intermediate steps on the velocity swap.

Author: Stephen Butcher,

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6 to 15V DC to DC Converter

A very efficient 6V to 15V DC to DC converter using LM2585 is shown here. LM2585 is a monolithic integrated voltage converter IC that can be used in various applications like flyback converters, boost converters, forward converters, multiple output converters etc. The circuit requires minimum number of external components and the IC can source up to 3A output current.

Circuit diagram :

6 to 15V DC to DC Converter Circuit Diagram

Here the IC is wired as a boost converter where resistors R1 and R2 are used to set the output voltage .The junction of R1 and R2 is connected to the feedback pin of IC1. Capacitor C4 is the input filter while capacitor C1 the filter for output. Network comprising of resistor R1 and capacitor C2 is meant for frequency compensation. Inductor L1 stores the energy for acquiring boost conversion.

Notes:    

• Assemble the circuit on a good quality PCB.
• LM2585 requires a heatsink.
• Output voltage is according to the equation Vout =( (R1/R2)+1) x 1.23.
• Capacitors other than C4 and C1 are ceramic capacitors.
• Maximum output current LM2585 can source is 3A. 

Source : Circuitstoday

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