Patent ID: 9731501
Date: 2017-08-15
CPC Classifications: B41J

Claim:
1. A driving circuit for driving a capacitive load, comprising: a modulator that generates a modulated signal which is obtained by pulse-modulating an original signal; a transistor that generates an amplified and modulated signal which is obtained by amplifying the modulated signal; a switching circuit; a low pass filter that generates a drive signal which is applied to the capacitive load by demodulating the amplified and modulated signal; a feedback circuit that generates a feedback signal based on the drive signal and feeds back the feedback signal to the modulator; a feedback terminal that electrically connects the modulator to the feedback circuit; and wherein a distance between the feedback terminal and a closest point to the feedback terminal in the modulator is shorter than a distance between the feedback terminal and a closest point to the feedback terminal in the switching circuit.