Patent ID: 11923840
Assignee: NXP B.V.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 12:
13. The circuit of claim 10, wherein the current generator comprises:
a first reference transistor that comprises (i) a source terminal coupled to a ground terminal, (ii) a gate terminal, and (iii) a drain terminal coupled to the gate terminal of the first reference transistor, wherein the first reference transistor is configured to receive, at the gate terminal and the drain terminal thereof, a start-up current that enables a start-up of the current generator;
a second reference transistor that comprises (i) a gate terminal coupled to the gate terminal of the first reference transistor, (ii) a drain terminal, and (iii) a source terminal;
a second resistor coupled to the source terminal of the first reference transistor and the source terminal of the second reference transistor;
a third reference transistor that comprises (i) a source terminal configured to receive the second supply voltage, (ii) a gate terminal, and (iii) a drain terminal coupled to the gate terminal of the third reference transistor and the drain terminal of the second reference transistor; and
a fourth reference transistor that comprises (i) a source terminal configured to receive the second supply voltage, (ii) a gate terminal coupled to the gate terminal of the third reference transistor, and (iii) a drain terminal coupled to the drain terminal of the first reference transistor, wherein the reference current is generated based on a gate-source voltage of the first reference transistor, a gate-source voltage of the second reference transistor, and a resistance of the second resistor.