Precision high voltage FET pulse sense and clamp apparatus statement of government interest
US4939450A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1989 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Mar 17, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R13/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A high voltage pulse regulator which is capable of measuring and correcting voltage perturbations on the top of a high voltage square wave pulse is disclosed. The regulator uses: a rectifying diode, an oscilloscope, a variable zener diode, a variable biasing current source and pulse capacitor. The rectifying diode receives and rectifies the high voltage square wave pulse from a high voltage pulse source to produce a rectified square wave pulse. The rectified square wave pulse is received and regulated to a voltage level acceptable to the oscilloscope by the variable zener diode pulse capacitor, and current source, which are connected together in a parallel circuit and act as follows. The variable zener diode is activated by the biasing current. Therefore, when there is no biasing current, the pulse capacitor and rectifying diode act as a peak detector, and the high voltage square wave pulse is adjusted down within a threshold of detection by the oscilloscope, when a bias current is applied to the variable zener diode, a threshold detector is established which permits the top of the pulse to be viewed on the oscilloscope display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.