초록 ▼

A driver for producing a desired pulse width modulated current through a load is provided with a sequencer for generating a plurality of wave forms phase-shifted so as to have non-overlapping duty cycles. A target generator supplies a target current value to a comparator, which compares the target c

A driver for producing a desired pulse width modulated current through a load is provided with a sequencer for generating a plurality of wave forms phase-shifted so as to have non-overlapping duty cycles. A target generator supplies a target current value to a comparator, which compares the target current value to a signal representative of a sensed current flowing through the load. A driver control is responsive to a duty-cycle of only one of the plurality of wave forms to selectively generate trigger signals for switching current through the load in response to the result of the comparison.

대표청구항 ▼

[ What is claim is:] [1.] A driver for producing a desired pulse width modulated current through a load, comprising:a target generator for supplying a target current value;a comparator for comparing said target current value to a signal representative of a sensed current flowing through the load;a s

[ What is claim is:] [1.] A driver for producing a desired pulse width modulated current through a load, comprising:a target generator for supplying a target current value;a comparator for comparing said target current value to a signal representative of a sensed current flowing through the load;a sequencer for generating a plurality of wave forms phase-shifted so as to have non-overlapping duty cycles; anda driver control for selectively generating trigger signals to switch current through the load in response to the result of said comparison, wherein said driver control is responsive to a duty-cycle of only one of said plurality of wave forms to generate said trigger signals.