Electronic circuit and method for determining an impedance
US9188613B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2012 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | May 28, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic circuit is arranged in an external programming device and is used for contactless programming of a circuit to be programmed. The electronic circuit has a series resonant circuit that includes a transmitter coil and a capacitor. The transmitter coil of the series resonant circuit is used for inductive coupling to a receiver coil in the circuit to be programmed. For the purpose of evaluating the impedance that actually exists in the circuit to be programmed, there is provided a device for determining the value of the impedance from a phase difference between the control voltage of the series resonant circuit and the capacitor voltage of the series resonant circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.