Blocking oscillator for a reciprocating electromagnetic actuator
US4464613A · kind A · utility
3Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1983 |
| Grant date | Aug 7, 1984 |
| Priority date | — |
| Expiry date | Feb 17, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A blocking oscillator for a reciprocating electromagnetic actuator having a solenoid coil, a detection coil for generating a control signal in response to a charge in the magnetic field generated by the solenoid coil, a silicon Darlington amplifier responsive to the control signal to control the current through said solenoid coil, and a diode connected in series with the collector of the Darlington amplifier rendering the Darlington amplifier immune to reverse voltage and transient signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.