Driving circuit, magnetic sensing circuit, and electrical device

A driving circuit, comprising:

• a segment display, comprising a plurality of light-emitting units;
• a controller, configured to generate a control instruction for the segment display according to a configuration signal;
• a digital driver, connected to the controller, and configured to generate a pulse driving signal according to the control instruction generated by the controller;
• and
• an amplification circuit, with one end being connected to the digital driver and the other end being connected to the plurality of light-emitting units of the segment display, and configured to amplify the pulse driving signal, wherein the amplified pulse driving signal is used for driving the light-emitting units of the segment display to emit light,
• wherein there are a plurality of segment displays, and each segment display comprises a plurality of light-emitting units,
• wherein driving circuit further comprises:
• a gating circuit, comprising a plurality of gating switches, wherein one end of each gating switch is connected to the digital driver, and the other end is connected to one segment display,
• wherein the control instruction further comprises a gating instruction, and the digital driver is further configured to generate a gating pulse signal according to the gating instruction, to drive a target gating switch of a selected target segment display to be turned on, and
• wherein the gating switch comprises:
• a first triode and a second triode, wherein the first triode is connected to the digital driver, and the second triode is connected to one segment display;
• and
• a first noise reduction circuit, connected between the first triode and the second triode, and configured to reduce a noise signal of the gating switch.