Patent ID: 11955881
Assignee: MINMAX TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A secondary-side protection and sense circuit for a power converter, comprising:
a sensing component connected to an output connecting terminal of the power converter;
an adder amplifying circuit comprising an operational amplifier, a first resistor, and a second resistor, wherein
the operational amplifier comprises:
an input terminal connected to the sensing component;
an output terminal connected to a primary-side control component of the power converter; and
a power terminal;

the first resistor and the second resistor are connected in series and between the input terminal and the power terminal of the operational amplifier; and a connection node is defined between the first resistor and the second resistor;

an electronic switch connected between a ground terminal and the connection node and comprising a control terminal; and
a charge/discharge circuit connected to the control terminal of the electronic switch and the power terminal of the operational amplifier.