Block Diagram; Functional Overview Of Key Circuits; Power Factor Correction Circuit (Pfc); High Voltage Dc Supply - Bovie SPECIALIST PRO Service Manual

BLOCK DIAGRAM

Figure 4 – 1 Functional block diagram of the Bovie® Specialist | PRO system

FUNCTIONAL OVERVIEW OF KEY CIRCUITS

The following descriptions highlight the main circuits in the Bovie® Specialist | PRO Electrosurgical Generator.

Power Factor Correction Circuit (PFC)

The Power Factor Correction Circuit ensures lower power consumption. The circuit is used to correct the power load
that is distributed to the unit's capacitors, providing the lowest voltage required for proper operation of the unit. The
PFC also regulates the universal input of 100 to 240 volts that power the unit.

High Voltage DC Supply

The unit incorporates a high voltage power supply to generate the RF output power. The high voltage power supply
delivers an unregulated DC output for the RF output. The nominal DC voltage from the high voltage power supply is
80 VDC ± 5V.

Low Voltage DC Supplies

The unit incorporates six regulated low voltage levels to control generator operations. They are: +3.3 VDC, +5 VDC,
+12 VDC, -12 VDC, 1.2 VDC, and -16 VDC.

Temperature Sensing Circuit

The temperature sensing circuit is used by the system logic to monitor the internal temperature of the unit. If the
temperature rises above 85° C, the system displays error code E7 and disables the RF output.
Service Guide • Specialist | PRO
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