LIGHT-EMISSION DRIVE CIRCUIT AND IMAGE FORMING APPARATUS

摘要

Provided is a light-emission drive circuit that includes a power supply and a pull-up circuit. The power supply is configured to generate a voltage that is higher than a voltage in a controller. The controller is configured to supply a control signal that drives a light-emitting section. The pull-up circuit is provided between the power supply and an input terminal of the light-emission drive circuit, and includes a switching section configured to be turned on when a voltage of the input terminal is lower than a predetermined voltage. The predetermined voltage is lower than the voltage of the power supply.

主权项

1. A light-emission drive circuit, comprising:
a power supply configured to generate a voltage that is higher than a voltage in a controller, the controller being configured to supply a control signal that drives a light-emitting section; and a pull-up circuit provided between the power supply and an input terminal of the light-emission drive circuit, and including a switching section configured to be turned on when a voltage of the input terminal is lower than a predetermined voltage, the predetermined voltage being lower than the voltage of the power supply.