Electronic switch relay
US6051895A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1998 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Apr 17, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/693
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic relay for use with an ultrasonic transducer. The electronic relay selectively couples the ultrasonic transducer to an electronic circuit. The transducer includes an input/output port for receiving excitation signals from the circuit and for transmitting echo signals back to the circuit. The electronic relay comprises a solid state switch and a leakage control circuit. The solid state switch is connected between the transducer and the electronic circuit. The switch is responsive to an actuation signal from the circuit for opening and closing the switch. The leakage control circuit is coupled to the switch and functions to control leakage current when the switch is open so as to electrically isolate the transducer from the electronic control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.