Wednesday, September 7, 2016

Voltage Doubler Power Supply Circuit using Classic Full-Wave CT Transformer

Electronic Kit School. - This is one electronic circuit of enhanced voltage doubler power supply for you who want to design double output voltage this time. One circuit that will provide this voltage doubler is use classic full-wave CT transformer.

Read also: Voltage Doubler Power Supply Circuit using Classic Full-Wave Bridge Rectifier

As we know that that one limitation when we build a voltage doubler circuit is essentially reduces the output current capacity and makes for poor regulation because high output impedance. However, this may be turned into an advantage in that the output is inherently current limited. Note that in the case of current limiting, the current rating of the capacitors may need to be evaluated as they do have a finite AC component voltage rating and cannot tolerate excessive voltage without overheating.

In this article we will give you one electronic circuit of Voltage Doubler Power Supply Circuit using Classic Full-Wave CT Transformer like in Figure 1 below. The main circuit in this article is how to modify CT Transformer to other full-wave rectifier for voltage doubler. 

Circuit 

Figure 1. Voltage Doubler Power Supply Circuit using Classic Full-Wave CT Transformer

Component Parts

  1. Transformer
  2. Diodes
  3. Capacitors
Description

Circuit like in Figure 1 above show you about the Voltage Doubler Power Supply Circuit using Classic Full-Wave CT Transformer that give you one reference circuit to build by yourself of voltage doubler using classic full-wave CT Transformer now.

From Electroschematics site that the this is a very popular circuit. Note that the transformer must have a center tap –this generally rules out wall warts, but many transformers that may be salvaged from circuit boards do offer this feature.

A voltage doubler enhancement can be added to the existing full-wave CT configuration or it may be done per the above schematic. Via this means, a voltage doubler with twice line frequency ripple is feasible. Both positive and negative voltage outputs are also feasible at the same time. I like to call it a full-wave voltage doubler, but be careful not to confuse it with the classic full-wave voltage doubler that uses only two rectifiers and two capacitors in series. That circuit is not shown in this discussion.

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