replacing a selenium rectifier with a silicon diode

#REPLACING A SELENIUM RECTIFIER WITH A SILICON DIODE FULL#
#REPLACING A SELENIUM RECTIFIER WITH A SILICON DIODE SERIES#
#REPLACING A SELENIUM RECTIFIER WITH A SILICON DIODE FREE#

2 wires feed the two selenium rectifiers and the third wire is the battery positive which goes through the auto reset circuit breaker, throught the amp meter and out to the (+) battery clamp. Three wires come out the back of the transformer. One leg goes directly into the transformer while the other goes through the 6V/12V switch then two wires into the transformer and green goes to chassis ground. Not being well versed on the proper terminology, I will attempt to describe it in detail.Ī/C is fed into the front of the transformer. Is this a viable endeavour or preposterous

My thoughts are making a 'Y' in the transformer to rectifier wires and feeding the selenium off one set of 'Y' and the bridge off the other then running their output through the switch to the negative battery clamp wire.īoth rectifiers will be fed from the transformer but depending on the switch position, only the bridge or selenium would be active. My question is can I simply add a switch on the selenium and bridge rectifiers output thus allowing the bridge to provide a high amp setting for faster charging, then switch to the selenium for a slower limiting charge? These chargers are set up with 2 taps coming from the transformer feeding each of the selenium rectifiers and then out via the negative battery clip.

#REPLACING A SELENIUM RECTIFIER WITH A SILICON DIODE FULL#

Being that they are hard to obtain I installed a bridge rectifier which now outputs the full rated amperage.īeing aware of the fact selenium rectifiers will reduce current as the battery becomes fully charged I wish to retain them. They are rated at 10a yet the aged rectifiers will only produce about 2-3 amps.

Suppressors are also rated by the voltage clamping factor and the amount of reverse energy in joules that they can absorb.I have a few old school 12v automotive battery chargers using the selenium rectifiers.

#REPLACING A SELENIUM RECTIFIER WITH A SILICON DIODE SERIES#

Ratings: Determined by the cell size and number of cells in a series similar to the power rectifiers.

The selenium suppressors are used in applications to protect other components in the circuit such as motor- generators and other circuits with inductive components. Selenum surge suppressors are designed to protect semiconductors from damage due to transient surges. Center Taps, Full Wave Bridges single and three phase.

Current: Ratings are determined by the size of the cell, the number of cells in parallel, the circuit configuration and the type of cooling, Current Ratings of 0.5 amps for a 1.0 X 1.0 cell in a half wave configuration to 270 amps for a 8.0 X 16.0 cell in a 6 phase circuit.

The voltage rating is determined by the number of cells in series

Voltages: Standard Voltages per cell up to 36 v rms.

by using two or more rectifiers in an appropriate center tap or bridge circuit, both halves of the AC cycle may be rectified !

Like a silicon diode, when an alternating current is applied to a selenium rectifier in series with the load, half of the AC cycle is blocked and the load receives a pulsating direct current.

#REPLACING A SELENIUM RECTIFIER WITH A SILICON DIODE FREE#

Same day shipping (order before 11AM EST)Ī selenium rectifier is an electronic component that permits free passage of electric current in one direction, but almost completely blocks the flow of current in the opposite direction.

We supply spare parts for all the elevator industry Those components have the ability to recover after surge failure, which make them excellent for security applications.ĬOUGAR ELECTRONICS can supply OEM replacement parts for the following list of manufacturers and suppliers : Selenium components are very interesting for their reliability.

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Still commonly used in industrial application, do not hesitate to send your design for any quotation.Īll our selenium rectifiers and suppressors are made in house. Cougar Electronic is producing standard and custom design selenium rectifier & Selenium Supressor.

Replacing a selenium rectifier with a silicon diode