Patent ID: 11942834
Assignee: ZENG HSING INDUSTRIAL CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  D | IPC D  H

Claim 1:
2. The motor drive system of claim 1, wherein said driving module further includes:
a feedback resistor that has two terminals one of which is grounded; and
a switch that has a control terminal which is electrically connected to said pulse modulation module to receive the modulated pulse signal, a first terminal which is electrically connected to said negative output terminal, and a second terminal which is electrically connected to the other one of said terminals of said feedback resistor and which outputs the feedback signal;
wherein said switch is controlled by the modulated pulse signal to transition between an ON state where said first terminal is electrically connected to said second terminal and an OFF state where said first terminal is electrically disconnected from said second terminal, so that a pulsed voltage that has a duty cycle the same as the modulated duty cycle of the modulated pulse signal is formed at said first terminal and the average voltage of the modulated DC driving signal has a positive correlation with the ratio of the modulated duty cycle.