Controls And Indicators; Digital Pwm Circuit; System Logic - Bovie SPECIALIST PRO Service Manual

Controls and Indicators

The Bovie® Specialist | PRO controls and indicators are listed below:
•
MEMBRANE SWITCHES Toggle between modes and output power increments.
•
DISPLAYS Seven segment displays indicate the output power in watts.
•
MODE INDICATORS Green LEDs indicate the present mode of the unit.
•
POWER SWITCH A double pole single throw switch that snaps into the front bezel. This switch supplies the
AC mains current to the generator.

Digital PWM Circuit

The Digital Pulse Width Modulation (PWM) Circuit controls the output power of the unit. This digitally
controlled signal is used by the system logic to provide a precise signal to the RF drive.
The pulse width is determined by power setting (generated by the user) on the front of the unit.
When a power is selected, the system logic determines what the pulse width needs to be to deliver the requested
output.

SYSTEM LOGIC

The control logic uses a Field Programmable Gate Array as the "brain" of the Bovie® Specialist | PRO
Electrosurgical Generator. This system interprets all of the inputs and delivers the correct corresponding outputs.
Every operation of the unit is controlled from this system.
A System Clock Circuit, composed of an oscillator, provides the basic operating frequency of 5 MHz.
The Reset Circuit provides a single pulse at the time the Bovie® Specialist | PRO Electrosurgical Generator is
turned on.
This pulse resets the Field Programmable Gate Array to ensure proper operation.
Service Guide • Specialist | PRO
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