| 摘要 |
According to the disclosed method for the compensation of the offset voltage of a regulating amplifier (RV), the output of the regulating amplifier (RV) is separated from the regulating unit (SJ) of the regulating circuit. The value of the measured offset compensation voltage is stored. Once the offset compensation voltage has been measured and recorded, the output of the regulating amplifier (RV) is again connected to the regulating unit (SG) of the regulating circuit. The stored offset compensation voltage is applied to the input of the regulating amplifier (RV). Said method is used for example in the focus regulating circuit of a CD record player. Each time the compact-type record player is switched off and switched on again, the offset compensation voltage is again measured, stored and reapplied to the input of the regulating amplifier (RV). |
