| 摘要 |
<p>The present invention relates to an external type regulator for a vehicle alternator, and in particular to an external type regulator for a vehicle alternator which is capable of preventing a damage of electric parts and a battery by stopping a power generation by disconnecting a field current flowing in a field coil through a relay in the case that an over charge occurs in an alternator due to a damage of a regulator. The regulator for a vehicle alternator includes an over charge disconnector which includes a dividing resistor for dividing a voltage inputted through an IG terminal, a zenor diode which is turned off in the case that the voltage divided by the dividing resistor is higher than a zenor voltage, for thereby detecting an over charge of an alternator which occurs in an IG terminal, first and second transistors which are turned on when the zenor diode detects an over charge and is turned on and output a relay driving signal, a relay which has a contact point terminal connected between a power transistor and a field coil of the voltage adjusting unit and switch-driven in response to a relay driving signal when the first transistor is turned on, for thereby disconnecting a field current flowing between the power transistor and the field coil, and a plurality of resistors, condensers and diodes, whereby the over charge disconnector stops a power generation of the alternator by detecting an over charge of the alternator and disconnecting a field current flowing in the field coil. <IMAGE></p> |
