The Design for Digital Confocal Microscope Piezoele-ctric Ceramic Objectives Driving Power Supply

This system uses Modular Designing idea and designs a Digital Confocal Microscope Piezoelectric Ceramic Objectives Driving power supply,and it has been tested.The power supply takes the single chip microcomputer system as a core,controlling the 12 bit D/A switching circuit,then the D/A conversion's Output Voltage is passed to Proportional amplifier composed of Operational Amplifier HA17741 for Small voltage amplification,and is used to control high voltage DC-DC converter BYH 12-200S01.The power supply is tested and its output voltage can range from 16 to 200V and it can be numerical controlled,then,the Accuracy reach 60 mV,Ripple voltage is less than 20mV,so it meets the designed requirements of Piezoelectric Ceramic Driving.