System for compensating for offset voltages in comparators

Details System for compensating for offset voltages in comparators System for compensating for offset voltages in comparators

H - Electricity

03

F

355/20

H03F 3/45 (2006.01) G01R 19/165 (2006.01) H03F 1/30 (2006.01)

Patent

CA 1303751

SYSTEM FOR COMPENSATING FOR OFFSET VOLTAGES IN COMPARATORS Abstract of the Disclosure A variable input voltage is periodically introduced in first time periods to an amplifier such as a differential amplifier to obtain an output from the amplifier. The amplifier may receive a reference voltage at one input terminal and the input voltage at a second input terminal in the first time periods. The input to the amplifier is periodically shorted in second time periods alternating with the first time periods so that the reference voltage is applied to both input terminals. Any offset voltage from the amplifier in the second time period may be converted to a binary signal to indicate the polarity of the offset voltage. The binary signal may be introduced to a storage member such as a capacitance. The capacitance accumulates energy in accordance with the characteristics of the binary signal in successive ones of the second time periods. The energy in the capacitance is introduced to the output terminals of the amplifier in a direction to compensate for the offset voltage in the amplifier. First switches may prevent the energy in the capacitance from being introduced to the output terminals of the amplifier during the second time periods. Second switches may prevent the capacitance from being charged by the output from the amplifier during the first time periods.

572717

Affiliated with

Also associated with

Rating

System for compensating for offset voltages in comparators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for compensating for offset voltages in comparators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for compensating for offset voltages in comparators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1233842