CN210868262U

CN210868262U - ABS system indicator lamp control circuit

Info

Publication number: CN210868262U
Application number: CN201922010049.6U
Authority: CN
Inventors: 国成远; 肖国; 黄学蓉; 李明勇
Original assignee: Shenzhen Deping Guohan Automotive Electronics Technology Co ltd
Current assignee: Shenzhen Deping Guohan Automotive Electronics Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-06-26
Anticipated expiration: 2029-11-19

Abstract

The utility model relates to a ABS system field discloses a ABS system pilot lamp control circuit, include: the high potential input module is connected with the ABS indicator lamp and is used for outputting a high level to the ABS indicator lamp; the high potential input module includes: the first conduction unit is connected with an external input high level, is used for communicating the ABS indicator lamp with the external input high level first control unit when in conduction, is connected with the external input high level, and is used for controlling the conduction and the cut-off of the first conduction unit; the low potential input module is connected with the ABS indicator lamp and is used for outputting low level to the ABS indicator lamp; the low potential input module includes: the second conduction unit is connected with an external input high level and used for grounding the ABS indicator lamp when in conduction; and the second control unit is connected with an external input high level and used for controlling the on and off of the second conduction unit. The utility model discloses the effect that improves work efficiency has.

Description

ABS system indicator lamp control circuit

Technical Field

The utility model belongs to the technical field of the technique of ABS system and specifically relates to a ABS system pilot lamp control circuit is related to.

Background

At present, an indicator light is arranged on an ABS system, so that the working state of the ABS system is determined.

In the prior art, two ends of an indicator light need to be connected with a high level and a low level respectively, so that the light is turned on, the level connected with one pin of the indicator light is generally determined according to the level connected with the other pin, for example, if one pin is connected with a positive pole, the other pin needs to be connected with a low level, and if the other pin is connected with a negative pole, the other pin needs to be connected with a positive pole.

The above prior art solutions have the following drawbacks: because the setting of different vendors is all different, so the engineer when setting up the control circuit of pilot lamp, all will observe this vendor's setting, confirms the level that the pin is connected, then sets up control circuit according to the level that the pin is connected to lead to the engineer to all observe different vendors, make control circuit's design comparatively loaded down with trivial details, reduced work efficiency.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides an ABS system pilot lamp control circuit has the effect that improves work efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme: an ABS system indicator lamp control circuit comprising:

the high potential input module is connected with the ABS indicator lamp and is used for outputting a high level to the ABS indicator lamp;

the high potential input module includes:

a first conduction unit connected with the external input high level and used for connecting the ABS indicator lamp with the external input high level when in conduction

The first control unit is connected with an external input high level and used for controlling the on and off of the first conducting unit;

the low potential input module is connected with the ABS indicator lamp and is used for outputting low level to the ABS indicator lamp;

the low potential input module includes:

the second conduction unit is connected with an external input high level and used for grounding the ABS indicator lamp when in conduction;

and the second control unit is connected with an external input high level and used for controlling the on and off of the second conduction unit.

By adopting the technical scheme, when one end of the ABS indicator lamp is connected with a high level, the other end of the ABS indicator lamp needs to be connected with a low level, the second control unit controls the second conduction unit to be conducted, one end of the ABS indicator lamp is connected with the high level, the other end of the ABS indicator lamp is grounded, and the ABS indicator lamp emits light; when one end of the ABS indicating lamp is connected with the low level, the other end of the ABS indicating lamp needs to be connected with the high level, the first control unit controls the first conduction unit to be conducted, one end of the ABS indicating lamp is connected with the external input high level, the other end of the ABS indicating lamp is connected with the low level, and the ABS indicating lamp emits light, so that whether one end of the ABS indicating lamp is connected with the high level or the low level is not needed, the setting of a control circuit is simplified, and the working efficiency is improved.

The utility model discloses further set up to: still include the low-power module, the low-power module includes:

the first isolation unit is connected with the external input high level and the high potential input module and used for preventing the current from being transmitted to the external input high level through the high potential input module;

and the second isolation unit is connected with the ABS indicator light and the high-potential input module and is used for preventing current from directly reaching the ABS indicator light without passing through the high-potential input module.

By adopting the technical scheme, when one end of the ABS indicator lamp is connected with a high level and no input exists outside at the moment, the current flows from the ABS indicator lamp to the outside, and the first isolation unit prevents the current from being transmitted to the outside through the high-potential input module, so that the power consumption is reduced; the second isolation unit prevents current from directly reaching the ABS indicator lamp without passing through the high-potential input module, and isolates the ABS lamp from external input when the external input voltage is small.

The utility model discloses further set up to: the first isolation unit and the second isolation unit are both diodes, the anode of the first isolation unit is connected with an external input high level, and the anode of the second isolation unit is connected with an ABS indicator lamp.

By adopting the technical scheme, the diode has the characteristic of one-way conduction, so that the normal conduction is not influenced while the good isolation is realized, the voltage drop is small, and the whole circuit can keep smaller power consumption.

The utility model discloses further set up to: the first conduction unit is a transistor, the first control unit is a resistor, one end of the first control unit is connected with the current input ends of the first isolation unit and the first conduction unit, the other end of the first control unit is connected with the conduction control ends of the second isolation unit and the first conduction unit, one end of the second isolation unit is connected with the current output end of the first conduction unit, and the other end of the second isolation unit is connected with the conduction control end of the first conduction unit.

By adopting the technical scheme, the first control unit provides the conduction voltage for the conduction control end of the first conduction unit, so that the first conduction unit is conducted, the current reaches the ABS indicator lamp through the first isolation unit and the first conduction unit, and the lamp is lightened.

The utility model discloses further set up to: the second conduction unit is a transistor, the second control unit comprises a first resistor and a second resistor, the first resistor and the second resistor are connected in series and grounded, the connection midpoint of the first resistor and the second resistor is connected with the conduction control end of the second control unit, the current input end of the second conduction unit is connected with the second isolation unit, and the current output end of the second conduction unit is grounded.

By adopting the technical scheme, the second control unit provides the conduction voltage for the conduction control end of the second conduction unit, so that the first conduction unit is conducted, and the current is grounded through the second isolation unit to realize the lighting.

The utility model discloses further set up to: the first conduction unit and the second conduction unit are both NPN type triodes or N channel field effect transistors.

By adopting the technical scheme, the NPN type triode and the N channel field effect transistor can be conducted by applying a high level from the outside, so that the on-off of the ABS indicator lamp can be well controlled.

The utility model discloses further set up to: the ABS indicator lamp further comprises a protection unit, and two ends of the protection unit are respectively and electrically connected with the ABS indicator lamp, the high potential input module and the low potential input module.

By adopting the technical scheme, when the protection unit is in open circuit, the ABS indicator lamp is completely isolated from the high potential input module and the low potential input module, so that no current flows through the ABS indicator lamp, and the ABS indicator lamp is well protected.

To sum up, the utility model discloses following beneficial effect has:

1. by arranging the high potential input module and the low potential input module, the high potential input module provides high level when one end of the ABS indicator lamp is connected to be low, and the low potential input module provides low level when one end of the ABS indicator lamp is connected to be high, so that the ABS can normally work no matter what level is connected, the setting of a control circuit is simplified, and the working efficiency is improved;

2. by arranging the first isolation unit and the second isolation unit, the current is prevented from being generated when the ABS indicator lamp does not work, so that the power consumption of the control circuit is reduced.

Drawings

Fig. 1 is a circuit structure diagram of the present invention.

Reference numerals: 1. a high potential input module; 11. a first conduction unit; 12. a first control unit; 2. a low potential input module; 21. a second conduction unit; 22. a second control unit; 221. a first resistor; 222. a second resistor; 3. a low power consumption module; 31. a first isolation unit; 32. a second isolation unit; 4. and a protection unit.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a control circuit of ABS system pilot lamp, including high potential input module 1 and low potential input module 2, high potential input module 1 includes that first unit 11 and the first control unit 12 of switching on, and first unit 11 that switches on can be NPN type triode, and first control unit 12 can be resistance, and first base and the collecting electrode that switch on unit 11 are connected with the both ends electricity of first control unit 12 respectively.

The low potential input module 2 includes a second conduction unit 21 and a second control unit 22, the first conduction unit 11 may be an N-channel fet, the second control unit 22 includes a first resistor 221 and a second resistor 222, the first resistor 221 and the second resistor 222 are connected in series, a connection midpoint of the first resistor 221 and the second resistor 222 is electrically connected to a gate of the second conduction unit 21, a source of the second conduction unit 21 is grounded, one end of the second resistor 222 far from the first resistor 221 is also grounded, and one end of the first resistor 221 far from the second resistor 222 is connected to an external input high level.

The low-power-consumption module 3 is further included, the low-power-consumption module 3 comprises a first isolation unit 31 and a second isolation unit 32, the first isolation unit 31 and the second isolation unit 32 can be diodes, the anode of the first isolation unit 31 is connected with an external input high level, the cathode of the first isolation unit 31 is connected with one end, away from the base, of the first conduction unit 11, of the first control unit 12, the anode of the second isolation unit 32 is electrically connected with the emitter of the first conduction unit 11, and the cathode of the second isolation unit is electrically connected with the base of the first conduction unit 11 and the drain of the second conduction unit 21.

The ABS circuit further comprises a protection unit 4, the protection unit 4 can be a fuse, and two ends of the protection unit 4 are respectively and electrically connected with a pin of the ABS indicator lamp and the anode of the second isolation unit 32.

The implementation principle of the embodiment is as follows: when the pin at one end of the ABS indicator light is conducted to a high level, the second conducting unit 21 is conducted by the externally input high level, which is equivalent to grounding the other pin of the ABS indicator light, and the ABS indicator light emits light; when the pin of one end of the ABS pilot lamp is connected with the low level, the high level of external input is passed through at this moment, so that the first unit 11 that switches on, this moment is equivalent to connect another pin of the ABS pilot lamp with the high level, and the ABS pilot lamp is luminous at this moment, and no matter one of the pins of the ABS pilot lamp is connected with the high level or the low level, the work of the ABS pilot lamp can be realized through the high level of external input, the setting of a control circuit is simplified, and the work efficiency is improved.

When need not to control the ABS pilot lamp, outside no high level input, because the storage battery that the ABS pilot lamp generally adopted on the car supplies power, the one end of ABS pilot lamp is in the high level forever, this moment because there is not external input, the level of external input point department is less than the one end that the ABS pilot lamp connects the battery, thereby lead to the electric current refluence, make the ABS pilot lamp work, first isolation unit 31 is through the one way conduction nature of self this moment, prevent the electric current refluence, make the ABS pilot lamp unable work, reduce power consumption.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An ABS system indicator lamp control circuit, comprising:

the high potential input module (1) is connected with the ABS indicator lamp and is used for outputting a high level to the ABS indicator lamp;

the high potential input module (1) comprises:

a first conduction unit (11) connected with the external input high level and used for connecting the ABS indicator lamp with the external input high level when in conduction

The first control unit (12) is connected with an external input high level and used for controlling the on and off of the first conducting unit (11);

the low potential input module (2) is connected with the ABS indicator lamp and is used for outputting low level to the ABS indicator lamp;

the low potential input module (2) includes:

the second conducting unit (21) is connected with an external input high level and used for grounding the ABS indicator lamp when conducting;

and the second control unit (22) is connected with an external input high level and is used for controlling the on and off of the second conducting unit (21).

2. The ABS system indicator lamp control circuit according to claim 1, further comprising a low power consumption module (3), said low power consumption module (3) comprising:

the first isolation unit (31) is connected with the external input high level and the high potential input module (1) and is used for preventing current from being transmitted to the external input high level through the high potential input module (1);

and the second isolation unit (32) is connected with the ABS indicator light and the high potential input module (1) and is used for preventing current from directly reaching the ABS indicator light without the high potential input module (1).

3. The ABS system indicator lamp control circuit according to claim 2, wherein said first isolation unit (31) and said second isolation unit (32) are both diodes, the anode of said first isolation unit (31) is connected to external input high level, and the anode of said second isolation unit (32) is connected to ABS indicator lamp.

4. The ABS system indicator lamp control circuit according to claim 2, wherein the first conducting unit (11) is a transistor, the first control unit (12) is a resistor, one end of the first control unit (12) is connected to the current input terminals of the first isolating unit (31) and the first conducting unit (11), the other end is connected to the conducting control terminals of the second isolating unit (32) and the first conducting unit (11), the one end of the second isolating unit (32) is connected to the current output terminal of the first conducting unit (11), and the other end is connected to the conducting control terminal of the first conducting unit (11).

5. The ABS system indicator lamp control circuit according to claim 1, wherein said second conducting unit (21) is a transistor, said second control unit (22) comprises a first resistor (221) and a second resistor (222), said first resistor (221) and said second resistor (222) are connected in series and grounded, a connection midpoint of said first resistor (221) and said second resistor (222) is connected to a conducting control terminal of said second control unit (22), a current input terminal of said second conducting unit (21) is connected to said second isolating unit (32), and a current output terminal of said second conducting unit (21) is grounded.

6. The ABS system indicator lamp control circuit according to claim 1, wherein said first conducting unit (11) and said second conducting unit (21) are both NPN transistors or N channel fets.

7. The ABS system indicator lamp control circuit according to claim 1, further comprising a protection unit (4), wherein two ends of the protection unit (4) are electrically connected with the ABS indicator lamp and the high potential input module (1) and the low potential input module (2), respectively.