Invention Grant
US08385085B2 PWM signal generator, and inverter equipped with this PWM signal generator
有权
PWM信号发生器和配备该PWM信号发生器的变频器
- Patent Title: PWM signal generator, and inverter equipped with this PWM signal generator
- Patent Title (中): PWM信号发生器和配备该PWM信号发生器的变频器
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Application No.: US12678632Application Date: 2008-09-11
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Publication No.: US08385085B2Publication Date: 2013-02-26
- Inventor: Nobuyuki Hattori , Yoshito Ohta , Kenji Hirata
- Applicant: Nobuyuki Hattori , Yoshito Ohta , Kenji Hirata
- Applicant Address: JP Osaka JP Kyoto JP Niigata
- Assignee: Daihen Corporation,Kyoto University,National University Corporation Nagaoka University of Technology
- Current Assignee: Daihen Corporation,Kyoto University,National University Corporation Nagaoka University of Technology
- Current Assignee Address: JP Osaka JP Kyoto JP Niigata
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2007-247068 20070925
- International Application: PCT/JP2008/066399 WO 20080911
- International Announcement: WO2009/041276 WO 20090402
- Main IPC: H02M3/335
- IPC: H02M3/335 ; H02M1/12
Abstract:
The PWM signal generator of the present invention generates a first pulse waveform in which a first on-time ΔT1 calculated by a first on-time calculator (401) is used as an on-duration, and a second pulse waveform in which a second on-time ΔT2, calculated by a second on-time calculator (402) when a preset delay time has elapsed from the start of the calculation of the first on-time ΔT1, is used as an on-duration. Also, a PWM signal generator (413) generates a PWM signal on the basis of a composite pulse in which the generated first pulse waveform and second pulse waveform are combined, and the first on-time calculator (401) calculates the first on-time ΔT1 at the end of the composite pulse waveform.
Public/Granted literature
- US20100254172A1 PWM SIGNAL GENERATOR, AND INVERTER EQUIPPED WITH THIS PWM SIGNAL GENERATOR Public/Granted day:2010-10-07
Information query
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