Power Board Diagram
AC input |
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| Bridge |
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| EMI filter |
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| Transformer |
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| Rectifier |
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| and Filter |
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| Start Resistor |
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| PWM Control |
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| Power Switch |
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| (U901) |
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| (Q901) |
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Photo coupler
(U902)
Output |
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| Transformer |
| MOSFET | |
Circuit |
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| (Q803) |
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Lamp
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| PWM Control | |
Feedback | |||
| AM9000ES | ||
Circuit |
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14.5V
5V
Feedback
Circuit
14.5V
5V
ON/OFF
DIM
16