Title:
MOTOR DRIVE DEVICE, ELECTRIC FAN, AND ELECTRIC VACUUM CLEANER
Document Type and Number:
WIPO Patent Application WO/2018/047274
Kind Code:
A1
Abstract:
A motor drive device drives a single phase motor (12) by the power applied from a power supply (10) that is a storage battery, said single phase motor (12) being driven by a single phase alternating current. The motor drive device is provided with an inverter (11) for driving the single phase motor (12), wherein said inverter (11) makes the pulse width of an output voltage pulse wider as the voltage of the power supply (10) decreases, thereby suppressing the lowering of the output voltage and suppressing the lowering of the number of rotations to easily perform increasing of the number of rotations or maintaining of a constant number of rotations.
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Inventors:
TAKAYAMA YUJI (JP)
ARISAWA KOICHI (JP)
SAKAI AKIRA (JP)
ARISAWA KOICHI (JP)
SAKAI AKIRA (JP)
Application Number:
PCT/JP2016/076452
Publication Date:
March 15, 2018
Filing Date:
September 08, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/08
Domestic Patent References:
| WO2015182659A1 | 2015-12-03 |
Foreign References:
| JPH0746886A | 1995-02-14 | |||
| JP2008132919A | 2008-06-12 | |||
| JP2016092920A | 2016-05-23 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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