JFET series connection
US8760214B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2010 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Aug 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/6874
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to a switching device for switching a current between a first connection (1) and a second connection (2), comprising a series connection of at least two JFETs (J1-J6), of which a lowest JFET (J1) is connected to the first connection (1), or the lowest JFET (J1) is connected in a cascade circuit to the first connection (1) via a control switch (M), and at least one further JFET (J2-J5), which is connected in series to the lowest JFET (J1), wherein the JFET (J6) farthest away from the lowest JFET (J1) is referred to as the uppermost JFET (J6) and is connected with the drain connection to the second connection (2), and wherein a stabilization circuit (D11-D53) is connected between the gate connections of the JFETs (J1-J6) and the first connection (1) in order to stabilize the gate voltages of the JFETs (J1-J6). An additional circuit (4), which draws the potential at the gate connection (G6) of the uppermost JFET (J6) to the potential at the drain connection (D6) of the uppermost JFET (J6), is switched between the gate connection (G6) of the uppermost JFET (J6) and the second connection (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.