Pulse drive circuit
US4716313A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1987 |
| Grant date | Dec 29, 1987 |
| Priority date | — |
| Expiry date | Jun 3, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018507
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In order to drive a capacitance load at a high speed without an undesirably large increase in the circuit size, a driving arrangement is provided to charge the capacitance load in accordance with a limited voltage. A voltage limiter is coupled to a supply voltage providing a predetermined limited voltage. A pulse generator is coupled to receive the limited voltage and to provide output pulses which are, in turn, limited in accordance with the output voltage of the voltage limiter. A driver is coupled between the supply voltage and the capacitance load, and is controlled by the output pulses of the pulse generator. In this way, the capacitance load is charged through the driver in accordance with the limited voltage. Since the voltage limiter is not arranged along a series connection between the driver and the capacitance load, the internal equivalent resistance of the voltage limiter does not detrimentally influence the resistance along the series connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.