Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1987-04-09
1988-09-20
Salce, Patrick R.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
363 98, 363132, 318811, H02M 7537
Patent
active
047729961
ABSTRACT:
A PWM inverter includes a plurality of arms connected in parallel with a d.c. power source. Each arm is constituted by an upper arm and a lower arm each having a switching element. A plurality of switching control signals are continuously and alternately applied to one and the other of the two switching elements constituting the same arm respectively. In the PWM inverter, shunt resistors are connected between a minus terminal of the d.c. power source and the lower arms respectively. The PWM inverter further comprises a waveform command generating circuit generating commands representative of current waveforms to be supplied to a load, a carrier wave generating circuit and sample-hold circuits. Each of the sample-hold circuits samples and holds a terminal voltage of the associated shunt resistor in synchronism with the period of the carrier wave generated from the carrier wave generating circuit and at specific timing in a conduction period of the associated switching element.
REFERENCES:
patent: 4546422 (1985-10-01), Okado
patent: 4597037 (1986-06-01), Okado
patent: 4617622 (1986-10-01), Fox
patent: 4630187 (1986-12-01), Henze
patent: 4685042 (1987-08-01), Severinsky
Hanada Takeshi
Hanei Hiroyuki
Kubo Kenji
Matsuda Toshihiko
Omae Tsutomu
Hitachi , Ltd.
Salce Patrick R.
Todd Voeltz Emanuel
LandOfFree
Load current detecting device for pulse width modulation inverte does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load current detecting device for pulse width modulation inverte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load current detecting device for pulse width modulation inverte will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1752672