Title:
モーターの回転制御回路、これを駆動源として利用した駆動体
Document Type and Number:
Japanese Patent JP4623366
Kind Code:
B2
Abstract:
Provided is a motor control circuit in which the circuit structure is not complicated, which has a favorable response to the phase difference signal, and in which the signal variation caused by heat is small. This rotation control circuit of a motor includes: a PWM control circuit of the motor; a rotational speed sensor of the motor; a reference signal generation circuit 10 ; a phase comparing circuit; and a divider for dividing the detected rotational speed signal of the motor; wherein the phase difference between the signal from the divider and the signal based on the reference signal is sought with the phase comparing unit, and this phase difference signal is supplied to the PWM control circuit.
Inventors:
Kei Takeuchi Satoshi
Application Number:
JP2004548074A
Publication Date:
February 02, 2011
Filing Date:
October 29, 2003
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
H02P7/06; B60L15/20; H02P7/293
Domestic Patent References:
| JP8319956A | ||||
| JP10301636A | ||||
| JP59081712A | ||||
| JP63290185A | ||||
| JP2000333485A | ||||
| JP5176581A | ||||
| JP11178380A | ||||
| JP2000067492A | ||||
| JP4000288A |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Katsuro Tanaka
Shinji Oga
Katsuro Tanaka
Shinji Oga