DRIVING DEVICE, LIGHT-EMITTING DEVICE, PROJECTION DEVICE, CONTROL METHOD, AND STORAGE MEDIUM

摘要

A driving device includes: a power source circuit that converts inputted power to a constant voltage or constant current power, and outputs this converted power; a driver circuit that supplies the power outputted by the power source circuit to a load; and a control unit that receives the voltage or current of the power outputted by the power source circuit, calculates a value by multiplying a control gain by a difference of the detected value and a constant target value, and outputs a feedback signal based on this calculated value to the power source circuit, thereby performing feedback control on the power source circuit, the control unit raising the control gain when the voltage or current of the power outputted by the driver circuit is changed.

主权项

1. A driving device for driving a load, comprising:
a power source circuit that converts power inputted thereto to a power of a constant voltage or a constant current, and then outputs said power that has been converted; a driver circuit that receives the power outputted by the power source circuit and outputs a power to the load; and a control unit performing feedback control on the power source circuit, the control unit receiving a voltage or a current of the power outputted by the power source circuit as a detected value, and outputting to the power source circuit a feedback signal based on a value obtained by multiplying a difference of the detected value and a constant target value by a control gain, wherein the control gain is increased when a voltage or a current of the power outputted from the driver circuit is to change.