5702269-C Theory 2-3
Pinnacle™ Plus+ 10 kW
Input
In the input section, AC line voltage is applied through the circuit breaker to a three-
phase contactor. The contactor, when closed, delivers the line voltage to a rectifier
bridge, where it is converted to DC. This bus provides DC voltage to the inverter
section. The input section also provides power to the housekeeping section.
Housekeeping Supply
The housekeeping supply section provides low voltage to power the electronic circuits
within the Pinnacle Plus+ unit.
Inverter
The inverter section converts DC to high-frequency voltage by alternating the current
through switching transistors.
Output
In the output section, an isolation transformer steps up the high-frequency voltage
from the inverter section and sends it to a full-wave rectifier bridge.
Output Measurement
The output measurement section measures current, and voltage. These signals are
typically scaled to 0 to 10 VDC and sent to the logic, control, and interfaces.
DC Chopper Section
This section uses a patented circuit with a tapped inductor and a shunt switch to chop
or pulse the DC before being sent to the output.
Logic Control
The microprocessor in the logic control section uses operator-supplied parameters and
set points to control the output. This section is also responsible for providing status
information to the operator through all interfaces and for controlling the input section.
To Next Page
Loading...