Drive circuit, chip and electronic device

A drive circuit, comprising:

• a matching resistor, wherein one end of the matching resistor is coupled to a ground voltage;
• an operational amplifier constant current source circuit, wherein the operational amplifier constant current source circuit comprises an operational amplifier, a first switching transistor, a first resistor, and a second resistor, the first resistor coupled between a supply voltage and an input terminal of the first switching transistor, the second resistor coupled between a first node and the ground voltage, the operational amplifier having an inverting input terminal coupled to an output terminal of the first switching transistor at the first node, an output terminal coupled to a control terminal of the first switching transistor at a second node, and a non-inverting input terminal configured to receive an input voltage signal;
• an H-bridge circuit, comprising a second switching transistor, a third switching transistor, a fourth switching transistor, and a fifth switching transistor, wherein the H-bridge circuit, coupled between the supply voltage and another end of the matching resistor;
• and
• a switching circuit, wherein the switching circuit is coupled to the second node, a control terminal of the second switching transistor, and a control terminal of the third switching transistor, wherein the switching circuit is configured to connect the second node to the control terminal of the second switching transistor in response to a first control signal.