Patent ID: 11934216
Assignee: HEFEI AICHUANGWEI ELECTRONIC TECHNOLOGY CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. The precision adjustment method according to claim 7, wherein the negative temperature change rate current generation circuit (21) comprises triodes Q1, Q2, Q3 and Q4 connected with each other, wherein a drain of the triode Q1 is connected with the resistor R2 and a gate of the triode Q1; a source of the triode Q1 is connected with a drain of the triode Q2 and a gate of the triode Q3; a source of the triode Q2 is grounded and connected with a source of the triode Q3 via a resistor R4; a gate of the triode Q2 is connected with a source of the triode Q4; a drain of the triode Q3 is connected with the source of the triode Q4; a gate of the triode Q4 is connected with the gate of the triode Q1; and a drain of the triode Q4 is connected with an input end of the precision adjustment and output circuit.