Pulse width modulation signal generating apparatus having...

Details Pulse width modulation signal generating apparatus having... Pulse width modulation signal generating apparatus having...

2007-10-30

2007-10-30

Mis, David (Department: 2817)

Electricity: motive power systems

Synchronous motor systems

Armature winding circuits

C318S811000

Reexamination Certificate

active

10732348

ABSTRACT:
In an apparatus for generating complementary first and second pulse width modulation signals, a signal generating circuit generates a first signal for causing the first pulse width signal to switch from an ON level to an OFF level, a second signal for causing the first pulse width signal to switch from the OFF level to the ON level, a third signal for causing the second pulse width signal to switch from the ON level to the OFF level, and a fourth signal for causing the second pulse width signal to switch from the OFF level to the ON level. A control circuit sets a first dead time between the first and fourth signals and a second time between the third and second signals individually.

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