Title:
ELECTROMAGNETIC COIL DRIVE CIRCUIT, SERVO DRIVER, AND SERVO SYSTEM
Document Type and Number:
Japanese Patent JP2023169052
Kind Code:
A
Abstract:
To provide an electromagnetic coil drive circuit, a server driver, and a servo system that can drive a clutch brake in a short time and secure a necessary excitation current without having two voltage systems.SOLUTION: An electromagnetic coil drive circuit 210 includes a single excitation power supply 21, an electromagnetic coil 22 whose operating state is changed by turning on/off an excitation current, a chopper control switch element 23, a back surge absorption element 24 that absorbs back surge when the excitation current is turned OFF, an element 25 having an impedance and an element 26 having a capacitance connected in series therewith, which are provided in parallel with the chopper control switch element 23 and between an electronic coil 22 and the negative side of the excitation power supply 21.SELECTED DRAWING: Figure 2
Inventors:
TAKAHASHI KAZUYA
Application Number:
JP2022080505A
Publication Date:
November 29, 2023
Filing Date:
May 16, 2022
Export Citation:
Assignee:
TAMAGAWA SEIKI CO LTD
International Classes:
H01F7/18; H01H47/00
Attorney, Agent or Firm:
Tomonari Tomizawa