Patent ID: 11862058
Assignee: LAPIS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. The load driving circuit as claimed in claim 1, wherein the output amplifier has an output end to which the load is connected,
in the first output-stage transistor of the output amplifier, a source receives a first power potential, and a drain is connected to the output end, and in the second output-stage transistor, a source receives a first reference potential, and a drain is connected to the output end,
the coupling circuit comprises:
a first transistor, generating the first current;
a second transistor, generating the second current;
a third transistor, generating the third current; and
a fourth transistor, generating the fourth current,
wherein in the first transistor, a source receives the first power potential, a gate is connected to the gate of the first output-stage transistor, and a drain is connected to the first output node,
in the second transistor, a source receives the first power potential, a gate is connected to the gate of the first output-stage transistor, and a drain is connected to the second output node,
in the third transistor, a source receives the first reference potential, a gate is connected to the gate of the second output-stage transistor, and a drain is connected to the first output node, and
in the fourth transistor, a source receives the first reference potential, a gate is connected to the gate of the second output-stage transistor, and a drain is connected to the second output node.