![](/images/new-backgrounds/1185436/185436157x1.webp)
(5) High voltage board
The high voltage board contains the high voltage output circuit, interlock switch circuit as well as providing a liaison connection with the power supply board, bias board, and the engine board.
High voltage board
| High voltage output circuit |
| |
Engine board |
|
|
|
Bias board | Control |
| Main |
|
| charger | |
MHVDR | and |
|
|
driver |
|
| |
|
|
| |
| circuit |
|
|
THVDR, |
|
| Transfer |
RTHVDR |
|
| |
| Control |
| roller |
PSEL1, |
|
| |
and |
|
| |
PSEL2 |
|
| |
driver |
|
| |
|
|
| |
HVISEL | circuit | Transfer bias |
|
|
| output |
|
|
| positive voltage | Power supply board |
|
| circuit | |
+24V2 |
|
| +24V2 |
|
| Interlock switch | +24V1 |
|
|
| |
|
|
| FAN, |
|
|
| HEATN, SLEEP |
|
|
| ZCROSS, |
|
|
| THERM, EXITN |
+5V |
|
| +5V |