Relaxation oscillator type spark generator
US4329628A · kind A · utility
13Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1980 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | Jul 31, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q3/004
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A spark generator of the relaxation oscillator type operates on only one half of the cycle of the applied alternating current. By providing a gating circuit that triggers through a threshold switch means from a capacitor charge, it is possible to fire a silicon controlled rectifier on the same half cycle as the charging of an energy storage capacitor. The circuit can be operated by means of a diode and switch, or by an asymmetric current conducting element such as a silicon controlled rectifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.