Two terminal rectifier normally OFF JFET
US6566936B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2000 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Sep 25, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/063
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A two terminal semiconductor circuit that can be used to replace the semiconductor diodes used as rectifiers in conventional DC power supply circuits. Three semiconductor circuits that can efficiently supply the DC currents required in both discrete and integrated circuits being operated at low DC supply voltages are disclosed. All three circuits have a forward or current conducting state and a reverse or non current conducting state similar to a conventional semiconductor diode. In a first configuration, an asymmetrical, enhancement mode, Junction Field Effect Transistor (JFET) is utilized as a two terminal device by connecting together the gate and source leads. The terminal voltage in the conducting state is considerably smaller than conventional semiconductor diodes. In a second configuration, an asymmetrical, enhancement mode, Junction Field Effect Transistor (JFET) is connected with a transformer such that the source and the drain serve as the two leads of a two terminal circuit. The voltage drop between source and drain when in the on or current conducting state is less than 0.1 volts, which is smaller than that obtained in the first configuration. In a third configuration, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.