Piezo-oscillator with heater and temperature control circuit
US6147565A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1999 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Aug 18, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There are disposed on a printed substrate a crystal resonator as a piezoelectric resonator, an oscillation circuit, a plurality of surface mount heaters and a temperature controlling circuit for controlling a heating temperature of the heaters. A case of the piezoelectric resonator and a lead terminal of the piezoelectric resonator are heated respectively at the same time by individually separate heaters for the purpose of heating the piezoelectric resonator, the oscillation circuit and the temperature controlling circuit at the same time. Accordingly, it is possible to provide a piezo-oscillator excellent in low power consumption and compactness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.