Bridging servo circuit with the TA7768F

Published:2011/7/24 20:16:00 Author:Christina | Keyword: Bridging, servo circuit | From:SeekIC

For some low voltage speed control circuits, the selection of the application-specific integrated circuit is very important, it needs to meet the requirements of the circuit such as the internal power consumption, the lowest operating voltage. The bridging servo circuit with the TA7768F is as shown in figure 1, the lowest supply voltage is 1.5V. The internal block diagram of the TA7768F is as shown in figure 2. The adjustable resistance prt can be used in the fine tuning application of the speed. So we can use it to compensate the dispersion of the electric motor and the integrated circuit parameters. In addition, you must notice that the small changing of the reference current is related with the dispersibility of the integrated circuit parameters. Also it is related with the variation of voltage, the load change, and the temperature change.



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