Delta HPH-20KA01KAT, Руководство пользователя

Страница: 8 / 41

Delta Electronics. Inc.
HPH-
20KA01KAT
4
Chapter 3: Specification
3.1.
System Block Diagram
Figure 3.1 System block diagram of Delta “HPH-20KA01KAT”
Table 3.1 Detail description for block diagram
Soft Start and PFC Section
AC line voltage is applied through the circuit breaker. The contactor,
when closed, delivers the line voltage to a rectifier bridge, where it is
converted to DC bus.
Converter Section
The converter section converts DC voltage stored in the bulk
capacitors to high-frequency voltage by alternating the current
through switching power components.
Output Section
In the output section, an isolation transformer steps up the high-
frequency voltage from the converter section and delivers it to a full-
wave rectifier bridge. The rectified DC power is then passed through
a measurement section to the output connector.
Output Measurement and
Feedback
The output measurement section measures current and voltage, and
feedback the voltage and current information to MCU for voltage,
current and power control and related protection.
Auxiliary Power
The AUX power provides low voltage source to supply the Vcc of
analog OPA, main controller, MCU, fan and LCD display.
MCU.FPGA
The MCU is responsible for controlling the power supply status and
providing status information to the operator through all interfaces.
The FPGA dominates the arc suppression mechanism.
Control Panel Display
Control panel shows operating mode, command level, feedback
values, set up Arc processing, process control, interface setup,
communication set and system status during power supply working.
Remote Control Interface
The power supply supports three types of interfaces: a User port
(analog), a Host port (RS-232, RS-485) and an active front panel. All
three interfaces communicate operator-supplied inputs to MCU and
provide the operator with status information.
EMI Filter
Three-phase
Power Input
PFC DC Bus
DC-DC
Converter
Arc Suppressor
Soft Start
Mechanism
Wide Range
Power Output
System Controller Interface
Sensor & Driver
Auxiliary
Power
Adaptable Fan Isolation