4.3 THC driver circuit com mission
5A fuse
Motor brrake adjustment
Fig 4-5 THC POWER AND DRIVE CIRCUIT BOARD
1, Motor brake adjustme nt
The potentiometer RP3 is to adjust the motor stop’s brake. Before delive ry, we have adjusted it
ok, please do not adjust before inquiry.
2, About the buzz sound of the motor when at the balance position
It’s normal phenomenon. CHC-200F’s driver circuit is adopted th e H-bridge circuit,
controlled by the PWM drive way to realize the speed adjustion. PWM is 9KHz, when at the
auto balance mode, the motor will send “buzz” sound.
NOTE: CHC-200F has be en adjusted ok before delivery, please DO NOT
adjust the THC’s inside circuit without permission.
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