Theory Of Operation; Section Overview; Hvps Theory Of Operation; Figure 4-1 Single-Gun Cv-12Slx Hvps Rear Panel - ferrotec Temescal CV-12SLX User Manual

4
4.1

Section Overview

This section provides separate theories of operations for the major modules of the CV-12SLX
power supply. Section 4.2 contains a theory of operation for the power module (i.e., HVPS) and
section 4.3 covers the FPS in detail.
4.2

HVPS Theory of Operation

4.2.1 Input Power Filtering, Protection, and Distribution
AC line power is connected to the power module through rear-panel AC INPUT terminals (see
Figures 4-1 and 4-2). Line filter LF1 then performs high-frequency filtering to minimize
conductive emissions from the unit and to protect against AC line transients at common levels.
The load side of LF1 feeds three-phase circuit breaker CB1 as well as the J2, the filtered rear-
panel IEC auxiliary outlet (see Figures 4-1 and 4-2). Circuit breaker CB1 is mounted to the front
panel and shielded from inadvertent operation by a "kick" guard. CB1 provides overcurrent
protection for the three AC line phases, and its load side feeds the Inverter board. Rear panel AC
outlet J2 is fused at 6.3A by F1 and F2, which are accessible via the rear panel through panel-
mounted fuse holders (see Figures 4-1 and 4-2). On 208 VAC units, outlet J2 is connected
between phases, while on 400 VAC units it is connected between one phase and neutral. The
goal is to maintain the J2's voltage between 187 VAC and 254 VAC, taking into account the
±10% tolerance range of the voltage supplied to TB1.
0101-8292-0, Rev. C

Theory of Operation

Figure 4-1 Single-Gun CV-12SLX HVPS Rear Panel

4-1 CV-12SLX User Manual