Position control signal generating circuit
AssigneeSamsung Electronics Co., Ltd.
InventorYue-tai Youn
Life of this patent
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Abstract
A position signal generating circuit which is operated by a position controller for generating first and second determining signals, a rotation direction selection signal and an enable signal, the circuit including: a pulse generator for generating a basic pulse; a gate circuit for logic-operating the basic pulse from the pulse generator and the first and second mode determining signals from the position controller to output signals indicating the logic-operated results; and a rotation direction determining unit for combining the signals output from the gate circuit according to the rotation direction selection signal from the position controller to generate a position control signal. A desired position control signal can be generated by using simplified hardware and software without an additional selection switch.
Claims8
A position signal generating circuit which is operated by a position controller generating first and second mode determining signals and a rotation direction selection signal, said circuit comprising:
- a pulse generator generating a basic pulse;
- a gate circuit logic-operating the basic pulse from said pulse generator and the first and second mode determining signals from said position controller to output signals indicating the logic-operated results;
- and
- a rotation direction determining unit combining the signals output from said gate circuit according to the rotation direction selection signal from said position controller to generate a position control signal wherein, in said first mode, said position control signal includes a CW/CCW signal, and, in said second mode, said position control signal includes a pulse/sign signal.
Dependencies are inferred from the claim text.