Practical Pressure Adjustable System Circuit

Published:2011/6/14 23:19:00 Author:Robert | Keyword: Practical, Pressure, Adjustable, System | From:SeekIC

A practical pressure adjustable system circuit is shown in the picture. +12V power would be changed to 5V voltage through the 78L05 (IC2) to supply separately to MPX5100. Other circuits are all use the +12V power. MC33033 (IC1) is electrical motor controller. MC34272 (IC3) is a double operational amplifier (only one operational amplifier is used). To improve the efficiency, the electrical motor driver circuit uses a MPM3002 type driving module. Its internal part is a H-bridge circuit made up by 2 P-channel power FET (V1, V2) and 2 N-channel power FET (V3, V4). Its driving current can be 4A.



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