Patent ID: 11867571
Assignee: NXP B.V.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 2:
3. The temperature detection device of claim 1, where the current conveyor comprises:
a first circuit branch comprising a first PFET and second diode-connected NFET connected between (a) an input node for receiving the first bias current and (b) the first input voltage VS1;
a second circuit branch comprising a third diode-connected PFET and fourth NFET connected between (a) the input node for receiving the first bias current and (b) the second input voltage VS2; and
an output circuit branch comprising a fifth PFET connected between (a) the input node for receiving the first bias current and (b) the output node;
where the first PFET, third diode-connected PFET, and fifth PFET have gate terminals connected in common to a drain terminal of the third diode-connected PFET to produce the first over-temperature signal at a drain terminal of the fifth PFET in response to the first and second input voltages VS1, VS2 only when the startup bias circuit and current conveyor are connected and activated to form the closed loop.