Object lens inclination adjusting device circuit of laser sound pick-up

• Main Authors: HUANG CHUNSEN, GU KUNSHENG, WU ZHAOMING, PENG YUANPING
• Format: Patent
• Language: Chinese; English
• Published: 05.05.2010
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The utility model discloses an object lens inclination adjusting device circuit of a laser sound pick-up, and belongs to electronic equipment application circuits. The object lens inclination adjusting device circuit of the laser sound pick-up is composed of a master control circuit BA6791 chip, a focusing F adjusting circuit containing a potentiometer and a tracking T adjusting circuit, wherein two adjusting circuits are connected on the master control circuit through respective partial pressure input circuits, internal circuits of the master control circuit are input in partial pressure and are connected among respective voltage comparison modules, linear control modules and power driving modules in turn, VREF benchmark modules are connected between the voltage comparison modules, the master control circuit is respectively connected with an F circuit, a T circuit and a digital meter head of the laser sound pick-up, and the whole circuit adopts two power supplies for supplying power. The circuit can drive se