Myers Bigel Sibley & Sajovec
CONTROL SYSTEMS HAVING AN ANALOG CONTROL UNIT THAT GENERATES AN ANALOG VALUE RESPONSIVE TO A DIGITAL VALUE AND HAVING TWICE THE RESOLUTION OF THE LEAST SIGNIFICANT BIT OF THE DIGITAL VALUE AND METHODS OF OPERATING THE SAME
A control system includes a digital control unit that is configured to generate a digital value responsive to a difference between an output analog value and a reference value. A control signal generating unit is configured to generate a control signal. An analog control unit includes a first circuit that is configured to generate a first analog value responsive to the digital value and a second circuit that is configured to generate a second analog value responsive to the control signal. The second circuit is configured to generate the second analog value at a resolution that is twice that of a resolution of the first circuit with respect to a least significant bit of the digital value. The analog control unit is configured to combine the first and second analog values to generate the output analog value.
Samsung Electronics Co., Ltd.
G G G G
G11C G11C G11C G05B
inventional inventional inventional inventional
Jung-hwan
Choi