Patents by Inventor Shinsuke TAKESHIMA

Shinsuke TAKESHIMA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Motor drive
    Patent number: 9455652
    Abstract: If a bus current a bus current detector 11 detects exceeds a current cutoff value, an overcurrent detector 12 supplies a gate driver 14 with an open signal for turning off switching elements 5-10 to break the current to a motor 1. Besides, when the overcurrent detector 12 detects an overcurrent, a feedback controller 15 provides the gate driver 14 with a short-circuit braking instruction to apply short-circuit braking after breaking the power supply, and to restart PWM control from a state in which the short-circuit braking is being applied and the duty ratio command value is reset at 0.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: September 27, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tomohiro Ueno, Yoshitaka Onishi, Satoshi Kawamura, Shinsuke Takeshima
  • MOTOR DRIVE
    Publication number: 20150303839
    Abstract: If a bus current a bus current detector 11 detects exceeds a current cutoff value, an overcurrent detector 12 supplies a gate driver 14 with an open signal for turning off switching elements 5-10 to break the current to a motor 1. Besides, when the overcurrent detector 12 detects an overcurrent, a feedback controller 15 provides the gate driver 14 with a short-circuit braking instruction to apply short-circuit braking after breaking the power supply, and to restart PWM control from a state in which the short-circuit braking is being applied and the duty ratio command value is reset at 0.
    Type: Application
    Filed: January 31, 2013
    Publication date: October 22, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tomohiro UENO, Yoshitaka ONISHI, Satoshi KAWAMURA, Shinsuke TAKESHIMA