A.C. powered speed up circuit
US4092551A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | May 20, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/013
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An improved speed up circuit, especially useful with high speed, push pull circuits, is disclosed. This uses only A.C. power to discharge the interelectrode and depletion capacitances of an output transistor thereby eliminating uncontrolled shunt current from the output to ground through the output transistor thereby allowing the output to reach the desired level in a shorter period of time. These desirable results are accomplished by capacitively coupling a resistor-transistor speed up circuit to the base of the output transistor to actively pull the base of the output transistor to ground and discharge the inherent interelectrode and depletion capacitances of the output transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.