CN205239730U - Novel automatic headlight soft start circuit - Google Patents

Abstract

The utility model discloses a novel automatic headlight soft start circuit, including light sensor, microprocessor, storage battery, driver chip and headlight, the ambient light luminance information that light sensor will monitor feeds back to the microprocessor who connects with it, and driver chip and microprocessor are connected, and driver chip has a soft start functional circuit, and driver chip receives the switching of opening of the microprocessor outgoing letter headlight that number back microprocessor 0 connects with it and far and near fiber lamp, and the storage battery is continuous with driver chip, and the storage battery is the circuit and supplies power the headlight minus earth. The utility model discloses according to the luminance perception of external light, can realize when light is dark that the switching of opening headlight or far and near fiber lamp voluntarily prevents dangerous emergence. And simultaneously, the utility model discloses a circuit has headlight soft start function, when the bulb is lighted, can realize gradually brightly to prevent the bulb when the rigid connection energize because the filament temperature is low, the internal resistance is little, causes that the electric current is too big in the twinkling of an eye, and reduces the bulb life -span.

Description

A kind of new type auto headlight soft starting circuit

Technical field

The utility model relates to a kind of start-up circuit of motorcycle headlight, particularly has headlight and automatically starts and soft start function, belongs to motorcycle lighting lamp circuit mounting technology field.

Background technology

Existing motorcycle headlight adopts the manual open mode of driver more, and there is no headlight self-starting function, and thin due to part driver safety consciousness, rather dark in the situation that, do not open in time headlight, or abuse high beam, often easily causes the generation of security incident.

Motorcycle headlight is in the time directly starting, and the immediate current of startup is the several times of filament rated current, and because filament temperature is low, internal resistance is little, easily reduces bulb life or burns out filament. Meanwhile, because immediate current is excessive, the impact that battery is caused makes on same electrical network other loaded work pieces abnormal, causes and restarts etc. as instrument voltage reduces suddenly.

Utility model content

In view of above the deficiencies in the prior art, the utility model provides a kind of new type auto headlight soft starting circuit, can automatically open headlight according to the brightness perception of extraneous light, has soft start function, the safety of holding circuit simultaneously.

In order to achieve the above object, the technical scheme that the utility model adopts is: a kind of new type auto headlight soft starting circuit, comprise optical sensor, microprocessor, storage battery, drive chip and headlight, the ambient light monochrome information monitoring is fed back to the microprocessor being attached thereto by optical sensor, drive chip to be connected with microprocessor, drive chip to there is soft start function circuit, the unlatching of headlight and the switching of long-and-short distant light that the signal rear drive control that drives chip to receive that microprocessor sends is attached thereto, storage battery is connected with driving chip, storage battery is circuit supply, headlight minus earth.

Between described microprocessor and driving chip, be provided with hand switch, can be according to driver's needs manually opened headlight voluntarily.

On described microprocessor, set up delay function circuit, can prevent that light sudden change from causing opening by mistake of headlight or mistake to close.

Adopt after such scheme, the utility model is a kind of electronic control circuit of motorcycle headlight, can realize in the time that light is darker, automatically opens the switching of headlight or long-and-short distant light, prevents dangerous generation. Meanwhile, circuit of the present utility model is with headlight soft start function, in the time that bulb is lighted, can realize gradually bright, thereby prevent that bulb is in the time rigidly connecting energize, because filament temperature is low, internal resistance is little, causes immediate current excessive, and reduces bulb life.

By the drawings and specific embodiments, the utility model is further elaborated below.

Brief description of the drawings

Fig. 1 is the circuit connection diagram of the utility model embodiment.

Label declaration:

Optical sensor 1, microprocessor 2, hand switch 3, storage battery 4, drives chip 5, headlight 6.

Detailed description of the invention

Shown in Fig. 1, the utility model discloses the automatic headlight soft starting circuit of a kind of motorcycle, comprise optical sensor 1, microprocessor 2, storage battery 4, drive chip 5 and headlight 6, optical sensor 1 is for monitoring of environmental light luminance information and feed back to the microprocessor 2 being attached thereto, microprocessor 2 can judge whether to open according to the light luminance information receiving the switching of headlight 6 and long-and-short distant light, the driving chip 5 being connected with microprocessor 2 is the prior art chip with soft start function circuit, when the headlight 6 that the signal rear drive that drives chip 5 to receive that microprocessor 2 sends is attached thereto is opened, storage battery 4 is connected with driving chip 5, for circuit supply, headlight 6 minus earths.

Need manually opened headlight 6 for ease of driver according to self, on the basis of technique scheme, also can and drive between chip 5 at microprocessor 2 hand switch 3 is set.

For preventing that light sudden change from causing opening by mistake of headlight 6 or mistake to close, and also can increase delay function on microprocessor 2.

Above embodiment is only unrestricted in order to the technical solution of the utility model to be described, other amendments that those of ordinary skill in the art make the technical solution of the utility model or be equal to replacement, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in claim scope of the present utility model.

Claims (3)

1. a new type auto headlight soft starting circuit, it is characterized in that: comprise optical sensor, microprocessor, storage battery, driving chip and headlight, the ambient light monochrome information monitoring is fed back to the microprocessor being attached thereto by optical sensor, drive chip to be connected with microprocessor, drive chip to there is soft start function circuit, the unlatching of headlight and the switching of long-and-short distant light that the signal rear drive control that drives chip to receive that microprocessor sends is attached thereto, storage battery is connected with driving chip, storage battery is circuit supply, headlight minus earth.

2. the new type auto headlight soft starting circuit of one according to claim 1, is characterized in that: between described microprocessor and driving chip, be provided with hand switch.

3. the new type auto headlight soft starting circuit of one according to claim 1 and 2, is characterized in that: described microprocessor has delay function circuit.