Automobile generator voltage regulating module and circuit
An automobile generator and voltage regulation technology, which is applied in the direction of adjusting electric variables, control/regulation systems, instruments, etc., can solve problems such as battery internal plate vulcanization, battery overcharging, and shortening battery life, so as to avoid overcharging , The effect of prolonging the service life and shortening the service life
Active Publication Date: 2015-04-29
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0005] This kind of structure that adopts a compromise method to keep the output voltage of the generator constant at the set value has the following defects: the battery is overcharged in summer, which in turn accelerates the consumption of the electrolyte inside the battery and shortens the service life of the battery; Insufficient, which will intensify the vulcanization of the internal plates of the battery, which will also shorten the service life of the battery
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[0048] For the low-voltage detection circuit, when the voltage of the power terminal JL is lower than the set low-voltage threshold, the low-voltage limit signal output terminal outputs a high level, such as Image 6 As shown, the low voltage detection circuit may include a second voltage divider circuit, a sixth voltage regulator tube D6, and a fourth transistor Q4. The second voltage divider circuit is connected between the power terminal JL and the ground terminal JGND, and the sixth voltage divider circuit is connected between the power terminal JL and the ground terminal JGND. The anode and cathode of the pressure tube D6 are respectively connected to the base of the fourth transistor Q4 and the second voltage dividing point of the second voltage divider circuit. The collector of the fourth transistor Q4 is connected to the power terminal JL via the seventh resistor R7. Connected, the emitter of the fourth transistor Q4 is connected to the ground terminal JGND, and the colle...
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The invention discloses an automobile generator voltage regulating module and circuit. The automobile generator voltage regulating module comprises a driving unit and a control unit, wherein the driving unit disconnects an output terminal and a ground terminal when power input exists at the input end of the driving unit; the control unit comprises a first voltage division circuit and a third voltage regulator tube, and the positive electrode and the negative electrode of the third voltage regulator tube are connected with the input end of the driving unit and the first voltage division point of the first voltage division circuit respectively; the first voltage division circuit comprises a resistance temperature detector to increase the voltage division ratio of the first voltage division point along with increase of ambient temperature. The automobile generator voltage regulating module enables a generator to supply relatively low output voltage when the ambient temperature is high as well as to supply relatively high output voltage when the ambient temperature is low, thereby avoiding over-charging of a storage battery at the high temperature and insufficient charging of the storage battery at the low temperature and further effectively prolonging the service life of the storage battery.
Description
Technical field [0001] The invention relates to the technical field of automobile generators, in particular to a voltage regulation module of an automobile generator and a voltage regulation circuit that uses the voltage regulation module to regulate the output voltage of the generator. Background technique [0002] The vehicle power supply is composed of a battery and a generator. When the engine is not running, the battery supplies power to the electrical load of the vehicle. When the engine is running to drive the generator to generate power, the generator powers the electrical load of the vehicle and charges the battery at the same time. In order to be able to charge the battery through the generator to ensure sufficient battery power, the output voltage of the generator should be higher than the battery voltage. Because the characteristics of the battery will change with the change of the ambient temperature, the battery activity is better in summer, and it can release more ...
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IPC IPC(8): G05F1/56
Inventor 王宜海陈正江钱友军伍祥龙
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD