Generators & Regulators: Description

Generator is manufactured by Mitsubishi. Generator is a conventional rotating field, 3-phase, self-rectifying type. Four positive and 4 negative diodes are used to rectify current. System is equipped with built-in voltage regulator which controls output voltage and warning light operation.

The on-off operation of transistor Tr1, connects and disconnects the field current flow, providing a constant level of output voltage. See WIRING DIAGRAMS  .

When any of the following problems occur, the charge light will illuminate.

• No voltage generation: Brush wear exceeds specified limits, field coil circuit is broken, etc.
• Excessive output: Output voltage is greater than about 16 volts.
• Terminal "B" disconnection: Harness is disconnected from generator terminal "B".
• Terminal "S" disconnection: Harness is disconnected from generator terminal "S". In this case, voltage is slightly greater than specified regulated voltage; however, voltage regulation is still controlled and battery is prevented from being overcharged.