Thermoelectric cooler control circuit
US5088098A · kind A · utility
17Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1990 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Oct 16, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A thermoelectric cooler temperature control circuit provides a periodic control signal having a substantially constant peak-to-peak magnitude and an average value dependent on a sensed temperature to be regulated. The control signal is coupled to control the heating or cooling of a thermoelectric cooler. In a preferred embodiment, complementary positive and negative going control signal pulse streams are provided. A switch selectively couples one of the complementary pulse streams to cool the thermolectric cooler or the other stream to heat the cooler. The control signal pulse streams can be pulse width modulated signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.