Intelligent lamp charger of intelligent traffic system
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A technology of intelligent transportation system and charger, which is applied in the field of intelligent transportation, can solve the problems of large switching loss, insensitivity to ambient temperature response, and battery life affected by temperature rise, so as to reduce switching frequency and increase the speed of shutdown and restart process , The effect of reducing switching loss
Inactive Publication Date: 2015-12-09
CHENGDU CHUANRUI TECH
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[0005] In order to overcome the technical defects that the temperature rise of the existing LED power supply battery affects the battery life when charging, the frequent switching of the charging device causes large switching losses, and is not sensitive to the ambient temperature. The invention discloses an intelligent lamp charger for an intelligent transportation system.
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[0015] The specific embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0016] The intelligent lamp charger for the intelligent transportation system of the present invention includes a charging triode and a comparator, the emitter of the charging triode is connected to the charging output terminal through a current detection resistor, and the two ends of the current detection resistor are connected to the comparator respectively. The two input ends are connected, and an adjustment tube and a base voltage generation circuit are also included, the control end of the adjustment tube is connected to the output end of the comparator, and the input end and the output end of the adjustment tube are respectively connected to the output end of the base voltage generation circuit and the base of the charging transistor, the base voltage generating circuit is formed by a voltage dividing resistor and a voltage sta...
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Abstract
The invention relates to an intelligent lamp charger of an intelligent traffic system. The intelligent lamp charger includes a charging triode and a comparator, an emitting electrode of the charging triode is connected with a charging output end through a current detection resistor, two ends of the current detection resistor are connected with two input ends of the comparator, the intelligent lamp charger also includes a compensating pipe and a base voltage generation circuit, a control end of the compensating pipe is connected with an output end of the comparator, an input end and an output end of the compensating pipe are connected with an output end of the base voltage generation circuit and a base electrode of the charging triode, the base voltage generation circuit is formed by a divider resistor and a voltage stabilizing diode which are connected in series, and a temperature protection circuit is connected in parallel between the base electrode and the emitting electrode of the charging triode. The intelligent lamp charger of the intelligent traffic system does not control the triode directly, and lowers switching frequency of the charger tube, thereby reducing switching loss, and the intelligent lamp charger has a temperature regulation function, thereby reducing risks caused by overheating of a device.
Description
technical field [0001] The invention belongs to the field of intelligent transportation, and relates to a battery charging circuit, in particular to an intelligent lamp charger for an intelligent transportation system. Background technique [0002] LED is called the fourth-generation light source, which has the characteristics of energy saving, environmental protection, safety, long life, low power consumption, low heat, high brightness, waterproof, miniature, shockproof, easy dimming, concentrated beam, easy maintenance, etc., and can be widely used in Various indications, displays, decorations, backlights, general lighting and other fields. [0003] LED has high electro-optical conversion efficiency, green environmental protection, long life, low working voltage, repeated switching without loss of life, small size, less heat generation, high brightness, durable, easy to adjust light, various colors, concentrated and stable beam, no delay in starting, etc. At the same time...
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