Transformerless semiconductor AC switch having internal biasing

Details Transformerless semiconductor AC switch having internal biasing Transformerless semiconductor AC switch having internal biasing

1989-04-24

1991-04-09

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 307311, 3072961, 3072965, H03K 17687, H03K 1760, H03K 342, H03K 301

Patent

active

050067370

ABSTRACT:
An improved semiconductor AC switch is described having internal bias generation for the power MOSFET switches and isolated control input. Dual power MOSFETS with substrate diodes are connected in series between source and load. DC gate bias for the MOSFETS is derived from an internal power supply containing energy storage which charges from the line, typically every half cycle. The gates of the power MOSFETS are tied to the internal bias generator through a voltage divider network containing a variable resistance controlled by an optical input signal. The internal energy storage may be a capacitor or solid state battery, preferably a monolithic thick or thin film battery. No transformers or external control bias generators are required and the resulting switch is particularly simple and compact.

REFERENCES:
patent: 4419586 (1983-12-01), Phipps
patent: 4420700 (1983-12-01), Fay et al.
patent: 4645948 (1987-02-01), Morris et al.
patent: 4682061 (1987-07-01), Donovan
patent: 4698530 (1987-10-01), Thomson
patent: 4745314 (1988-05-01), Iwasaki
patent: 4796175 (1989-01-01), Nadd
patent: 4871927 (1989-10-01), Dallavalle
Owen, "Micro-Batteries", Solid State Batteries Proceedings of the NATO Advanced Study Institute, 1985, pp. 413-422.
Hooper et al., "All-Solid State Batteries", Journal of Power Sources, 11 (1984), pp. 33-41.
A. Hooper, "Solid State Batteries for Electronics and Microelectronics Applications", Elect. Ver. Dev (UK), vol. 6, No. 3, Jul. 1987, pp. 99-101.
Member of Siliconix Staff, "6.13.9 High Current Analog Switches", Siliconix Data Book, publication data unknown, pp. 6-182 to 6-183.

Affiliated with

Also associated with

Rating

Transformerless semiconductor AC switch having internal biasing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transformerless semiconductor AC switch having internal biasing , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transformerless semiconductor AC switch having internal biasing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2036765