5.2 CNTL board
Figure 5.2 picture of CNTL board
The CNTL board is the core of the Inverter system. It controls the actions of the
semiconductors and other mechanical switches, LCD display, buzzer alarm,
communication with the computer, and other important tasks. The inverter is controlled by
two CPUs, DSP and MCU. The master controller is the DPS. Its main function is to control
power and safety independence. The slave controller is the MCU. Its main function is to
control the safety with DSP, LCD display and communication.
5.3 BAT board
Figure 5.3 picture of BAT board
The BAT board will charge the battery or discharge the battery base on the signal from
CNTL board, CHG CNTL board and DISCHG CNTL board. And it can provide the SPS
board with DC source to avoid the input loss of the SPS board along with loss of BUS
voltage.
Grid SPS battery SPS
CHG CNTL
DISCHG CNTL
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