CPC G01R 19/0092 (2013.01) [G06F 1/3212 (2013.01); G06F 1/3215 (2013.01); G06F 1/3253 (2013.01); G06F 1/3287 (2013.01); H03K 5/08 (2013.01); H03K 17/0828 (2013.01)] | 17 Claims |
1. A sensor device coupled to a communication interface bus, the sensor device comprising:
a current source operable to provide a supply current to an operating voltage node;
a voltage clamp coupled between the operating voltage node and a power supply terminal; and
a control circuit coupled to the voltage clamp to receive a current sense signal and coupled to the current source to provide an adjustment signal to adjust the supply current responsive to the current sense signal,
wherein the current source is coupled to a tank capacitor to charge the tank capacitor using the supply current.
|