Reduced wire count heater array block
US9812342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2015 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Dec 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B1/0233
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A thermal system includes a plurality of thermal elements. In one form, each of the thermal elements define a resistor and a current limiting device. The plurality of thermal elements have at least a first subset of parallel thermal elements and at least a second subset of parallel thermal elements. The system also has a plurality of power lines connected to the plurality of thermal elements. The power lines are configured in pairs for providing power to a subset of the plurality of thermal elements that are connected in a parallel set. Each of the pairs of power lines share a common power line with an adjacent parallel set of thermal elements within a subset. Additionally, each of the current limiting devices in the adjacent parallel sets of thermal elements within a subset are opposed. The first and second subsets of parallel thermal elements share the common power line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.