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CONTROL CIRCUIT WITH FOUR COMPARATORS FOR FOUR-QUADRANT CHOPPER DRIVING
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| Author(s) |
Hisaichi Irie; Hideyuki Okui; Katsunori Taniguchi |
| Abstract |
This paper describes a circuit, operations and characteristics of an integrated voltage control circuit with four hysteresis comparators for bridged four-quadrant chopper driving. In
the circuit, the output of the error voltage integrator is fed to four comparators in parallel. Each comparator drives a switching device of the bridge circuit in charge of each quadrant.
This control method determines on/off of the four switching devices for four-quadrant operation automatically without current detection. It has no offset voltage and little transient distortion for transferring across quadrant operations. It also has the same advantages as the basic integrated voltage control: the control circuit is highly stable; the output voltage regulation is zero; the response time is within one cycle of the switching period; and it is easy to combine with current limiters of instantaneous current control circuits. |
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| Filename: | Unnamed file |
| Filesize: | 3.381 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-08-09 by System |
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