Patent
Inverter system for driving motor
Makoto Yoshida,Naomi Goto +1 more
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TLDR
In this article, an inventor system in which a first power supply system powers: a switching-element-group driving a motor, a charging-pump-type gate-driving-circuit, an inverter controller.Abstract:
An inventor system in which a first power supply system powers: a switching-element-group driving a motor, a charging-pump-type gate-driving-circuit, an inverter controller. A second power supply system powers an air conditioning controller outside of the inverter. An insulating communication circuit provides communication between the inverter controller and the air conditioning controller insulating these two controller. Most parts of the inverter system are powered by a single power supply system, i.e. the first power supply system, whereby electromagnetic noises are reduced, spaces involved in insulation can be saved, and the amount of wiring as well as cost is reduced.read more
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Patent
Portable Power Supply
Daniele C. Brotto,Nathan J. Cruise,Pradeep M. Pant,David A. Carrier,Shailesh P. Waikar,Ren Wang,Mehdi Abolhassani,William D. Spencer,Rouse R. Bailey,Jr. Andrew E. Seman,John E. Buck,Seth M. Robinson,Erik Ekstrom +12 more
TL;DR: A portable power supply includes a housing, and power circuitry providing an output AC waveform having a first positive voltage step level, a second higher voltage step levels, a third higher positive voltage level, an intermediate step level and a lower negative voltage level as mentioned in this paper.
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Variable speed compressor protection system and method
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Electrical power converter method and system employing multiple output converters
Bruce C. Beihoff,Lawrence D. Radosevich,Andreas A. Meyer,Neil Gollhardt,Daniel G. Kannenberg +4 more
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References
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Patent
Control apparatus for controlling motor of air conditioner
TL;DR: In this paper, a control apparatus for controlling a motor of an air conditioner includes a converter (2), having switching means (2a) for improving an input power factor, for converting an AC power to a DC power and an inverter (4) for converting the DC power supplied from the converter to the AC power and supplying to a compressor.
Patent
Controlling/driving apparatus for an electrically-driven compressor in a car
TL;DR: In this paper, a DC-AC converting invertor for converting a DC voltage into a pseudo AC voltage (e.g., a pulse train of positive and negative pulses) is presented, and a pulse width changing unit is used to change the width of each pulse of the pulse train in accordance with the voltage detected by the DC voltage detector.
Patent
Control method and apparatus for controlling motors of air conditioner
Koichi Toda,Ogawa Yoshio +1 more
TL;DR: In this paper, a control apparatus for controlling motors of an air conditioner consisting of a converter circuit having switching circuitry for converting AC power to DC power and setting an input voltage of an input alternating current waveform to a sine wave of the same phase as that of the input voltage was presented.
Patent
Inverter air conditioner
TL;DR: In this article, an inverter air conditioner controller includes an ac/dc converter for changing ac power into dc power, a dc/ac inverter for changing dc power into ac power having a desired frequency and a desired voltage to drive a compressor, compressor lock presumption unit for preliminarily determining whether a compressor lock occurs, and frequency increasing unit for increasing an operational frequency to a desired value.
Patent
Current controlling apparatus and method for air conditioning apparatus
TL;DR: In this article, a current control method and an apparatus for use in an air conditioning apparatus is described, where a total current detection portion is mounted at the AC power supply portion and a peak current detection device is mounted between the conversion portion and the inverter.