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2. Selenium rectifier - Wikipedia

   en.wikipedia.org/wiki/Selenium_rectifier

   An 8-plate 160 V 450 mA Federal brand selenium rectifier. A selenium rectifier is a type of metal rectifier, invented in 1933. [1] They were used in power supplies for electronic equipment and in high-current battery-charger applications until they were superseded by silicon diode rectifiers in the late 1960s.

3. Rectifier - Wikipedia

   en.wikipedia.org/wiki/Rectifier

   Typically these rectifiers were made up of stacks of metal plates or washers, held together by a central bolt, with the number of stacks determined by voltage; each cell was rated for about 20 V. An automotive battery charger rectifier might have only one cell: the high-voltage power supply for a vacuum tube might have dozens of stacked plates ...

4. Metal rectifier - Wikipedia

   en.wikipedia.org/wiki/Metal_rectifier

   Selenium Rectifier. 8-plate 160V 450mA Federal-brand. A metal rectifier is an early type of semiconductor rectifier in which the semiconductor is copper oxide, germanium or selenium. They were used in power applications to convert alternating current to direct current in devices such as radios and battery chargers.

5. Super Barrier Rectifier from Diodes Incorporated Helps ... - AOL

   www.aol.com/2013/05/02/super-barrier-rectifier...

   Super Barrier Rectifier from Diodes Incorporated Helps Reduce Charger Size PLANO, Texas--(BUSINESS WIRE)-- Diodes Incorporated (NAS: DIOD) , a leading global manufacturer and supplier of high ...

6. Power electronics - Wikipedia

   en.wikipedia.org/wiki/Power_electronics

   An HVDC thyristor valve tower 16.8 m tall in a hall at Baltic Cable AB in Sweden A battery charger is an example of a piece of power electronics. A PCs power supply is an example of a piece of power electronics, whether inside or outside of the cabinet.

7. Power semiconductor device - Wikipedia

   en.wikipedia.org/wiki/Power_semiconductor_device

   The first solid-state power semiconductor devices were copper oxide rectifiers, used in early battery chargers and power supplies for radio equipment, announced in 1927 by L.O. Grundahl and P. H. Geiger. [2] The first germanium power semiconductor device appeared in 1952 with the introduction of the power diode by R.N. Hall.