MX15 Series
103
5 Principle of Operation
5.1 General
An explanation of the circuits in the MX15 Series is given in this section. Refer to Figure 5-1 for
a basic functional block diagram of the system. Figure 5-2 shows a more detailed system
interconnect for a MX15-1 single-phase output unit.
Figure 5-1: MX Series Functional Block Diagram
5.2 Overall Description
Three-phase input power is routed to the back of the cabinet to a fuse holder terminal block. The
rear access panel has to be removed to gain access to the AC input connection fuse block.
From the fuse block, the AC input is connected to the three-phase input transformer primary.
The input transformer provides the required isolation between input and output of the MX and
accommodates various input voltage ranges by employing multiple taps. Three sets of single-
phase output secondaries are provided by the transformer to produce three 140 VAC
unregulated output AC buses. Each of these outputs is fed into the power module. The power
module is located in the middle of the MX chassis and can be pulled out from the front after
removing the front access panel and disconnecting the power input and output wiring.
The power module contains a three-phase PFC power input module. The PFC module acts as a
boost converter using a PWM converter topology to generate a 450 VDC regulated bus. A bank
Содержание California Instruments MX15 Series
Страница 1: ...7005 960 Rev N www programmablepower com MX15 Series AC and DC Power Source User Manual...
Страница 29: ...MX15 Series 29 Figure 2 5 MX output filter option schematic...
Страница 30: ...30 Figure 2 6 MX15 Output Noise 10 KHz 1 MHz...
Страница 31: ...MX15 Series 31 Figure 2 7 MX45 Output Noise 10 KHz 1 MHz with Optional Filter...
Страница 34: ...34 Figure 3 2 Location of AC Input Fuse Block and Chassis Ground Connection Rear View Access Panel Removed...
Страница 36: ...36 Figure 3 3 MX Series AC Input Connection Diagram Rear view...
Страница 43: ...MX15 Series 43 Figure 3 8 Two MX s in Clock and Lock mode Output Wiring Rear view...
Страница 45: ...MX15 Series 45 Figure 3 10 Three MX s in Clock and Lock mode Output Wiring Rear view...
Страница 58: ...58 Figure 3 15 Functional Test Setup...
Страница 106: ...106 Figure 5 2 MX Series Detailed Block Diagram...
Страница 107: ...MX15 Series 107 Figure 5 3 Power Module Detailed Block Diagram...
Страница 111: ...MX15 111 Figure 5 5 Amplifier Board Layout...
Страница 139: ...MX15 139 Figure 9 4 Voltage Modulation Frequency characteristics...