CN208324896U - A kind of intelligence TFT instrument controller wake-up circuit - Google Patents
A kind of intelligence TFT instrument controller wake-up circuit Download PDFInfo
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- CN208324896U CN208324896U CN201820892597.9U CN201820892597U CN208324896U CN 208324896 U CN208324896 U CN 208324896U CN 201820892597 U CN201820892597 U CN 201820892597U CN 208324896 U CN208324896 U CN 208324896U
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Abstract
The utility model provides a kind of intelligence TFT instrument controller wake-up circuit, the wake-up circuit includes: the collector first end with resistance R48 respectively of triode Q1, the first end of capacitor C42 is connected with the wake-up input terminal IGN_ON of controller, the base stage of triode Q1 is connected with the first end of resistance R47, the second end of resistance R47 is connected with the first end of the first end of resistance R45 and resistance R46 respectively, the second end of the resistance R45 first end with capacitor C200 respectively, the first end of polar capacitor EC2 is connected with the cathode of diode D2, the anode of diode D2 is connected with the first end of capacitor C18 and igniting output terminal IGN respectively, the second end of resistance R48 is connected with the power output end of power supply output module.The utility model can send wake-up signal to controller after firing, wake up controller, circuit is simple, is easy to practical.
Description
Technical field
The utility model relates to one kind be not limited only to be used in pure electric vehicle, including automobile (gasoline car, diesel vehicle) SUV,
MPV, truck further include the TFT field of instrumentation technology of motorcycle；More particularly to intelligent TFT instrument controller wake-up circuit.
Background technique
TFT (Thin Film Transistor) liquid crystal display digital combination meter be mainly used in pure electric automobile and
New-energy automobiles field, the micro- vehicle combination instruments of traditional power such as oil, cell mixed power automobile or motorcycle only show indicator light etc.
A small amount of information, the micro- vehicle combination instrument of pure electric vehicle use TFT liquid crystal display, introduce CAN interface, can not only show that tradition is micro-
The various indicator light interface contents that vehicle combination instrument is shown, moreover it is possible to show the information contents such as fault code signal, battery management, but
Be these information contents be controller work when just show, as early as possible wake up controller work can guarantee each seed ginseng
Several readings.
Utility model content
The utility model aims to solve at least the technical problems existing in the prior art, especially innovatively proposes a kind of intelligence
It can TFT instrument controller wake-up circuit.
In order to realize the above-mentioned purpose of the utility model, the utility model provides a kind of intelligence TFT instrument controller and calls out
Awake circuit, which includes: the power input of controller wake-up module and the power output end phase of power supply output module
Even, the wake-up output end of controller wake-up module is connected with the wake-up input terminal IGN_ON of controller；
Controller wake-up module include: triode Q1 collector respectively with the first end of resistance R48, capacitor C42
One end is connected with the wake-up input terminal IGN_ON of controller, and the base stage of triode Q1 is connected with the first end of resistance R47, resistance
The second end of R47 is connected with the first end of the first end of resistance R45 and resistance R46 respectively, the second end of resistance R45 respectively with electricity
First end, the first end of polar capacitor EC2 for holding C200 are connected with the cathode of diode D2, diode D2 it is positive respectively with electricity
The first end for holding C18 is connected with igniting output terminal IGN, the second end and the power output end phase of power supply output module of resistance R48
Even, the second end of capacitor C18, the second end of capacitor C200, the second end of polar capacitor EC2, the second end of resistance R46, three poles
The emitter of pipe Q1 and the second end of capacitor C42 are connected with power ground respectively.After igniting, igniting output terminal wakes up to controller
Module inputs wake-up signal, triode Q1 conducting, and the level signal of input controller is pulled low, and controller wakes up, and controller is opened
Beginning work, the wake-up circuit simple and stable, is easy to practical.Wherein, diode D2 is conducive to pressure limiting, voltage mistake when preventing from lighting a fire
Greatly, subsequent conditioning circuit is damaged；Capacitor C18 is conducive to absorb voltge surge when igniting.
In a kind of preferred embodiment of the utility model, power supply output module includes: the bootstrapping electricity of power supply chip U3
Hold end BOOT be connected with the first end of capacitor C3, the second end of capacitor C3 respectively with the cathode of diode D18, inductance L2 first
End, the first end of resistance R12 are connected with the switching node end SW of power supply chip U3, diode D18 it is positive respectively with power supply core
The ground terminal GND of piece U3, the first end of polar capacitor EC1, the first end of capacitor C57, the first end of capacitor C11, polar capacitor
The first end of EC8, the first end of capacitor C14, the first end of capacitor C15, the first end of resistance R11 are connected with power ground, inductance
The second end of L2 respectively with the second end of polar capacitor EC1, the second end of polar capacitor EC8, the second end of capacitor C14, capacitor
The second end of C15, the first end of resistance R17, the first end of resistance R18 are connected with the second end of resistance R48, and the of resistance R12
Two ends are connected with the first end of capacitor C32, and the second end of capacitor C32 is connected with power ground, the second end and resistance of capacitor C57
The first end of R16 is connected, the second end of the capacitor C11 end COMP compared with the second end of resistance R16 and power supply chip U3 respectively
Be connected, the second end of resistance R11 respectively with the second end of resistance R17, the error input terminal FB of power supply chip U3 and resistance R18
Second end is connected, and the pad end PAD of power supply chip U3 is connected with power ground；The power input VIN of power supply chip U3 respectively with
The first end of resistance R22, the first end of polar capacitor EC6, the first end of capacitor C82, the first end of capacitor C43, capacitor C8
First end, the first end of capacitor C7, the first end of capacitor C275, the cathode of diode D3, the cathode of diode D4, diode D6
Cathode be connected with the cathode of diode D7, the second end of polar capacitor EC6, the second end of capacitor C82, capacitor C43 second
End, the second end of capacitor C8, the second end of capacitor C7, the second end of capacitor C275, the first end of resistance R23 and resistance R87
First end is connected with power ground respectively, and the second end of resistance R22 and the second end of resistance R23 are enabled with power supply chip U3 respectively
EN is held to be connected, the second end of resistance R87 is connected with the timing end RT/CLK of power supply chip U3, the anode and diode of diode D3
The anode of D4 is connected with battery BAT respectively, the anode of diode D6 and diode D7 it is positive respectively with igniting output terminal IGN phase
Even.Voltage (2.5~42V, wherein on-vehicle battery or the electricity of igniting output terminal that on-vehicle battery or/and igniting output terminal are exported
Pressure is 12V, 18V or 24V)+5V is converted to, it powers to controller and provides level signal to controller.Wherein, multiple capacitors
Parallel connection advantageously reduce external interference, circuit is more stable.And multiple (i.e. two) diodes are arranged to be conducive to shunt, prevent
Individually diode current is excessive burns, and is conducive to pressure limiting, prevents subsequent conditioning circuit from damaging.
In a kind of preferred embodiment of the utility model, the model TPS54340-Q1 of power supply chip U3.
In a kind of preferred embodiment of the utility model, the model MB96F696 of controller.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are: the utility model can
Wake-up signal is sent to controller after firing, wakes up controller, circuit is simple, is easy to practical.
Detailed description of the invention
Fig. 1 is the utility model wake-up circuit connection schematic diagram.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
The utility model provides a kind of intelligence TFT instrument controller wake-up circuit, as shown in Figure 1, the wake-up circuit packet
Include: the power input of controller wake-up module is connected with the power output end of power supply output module, controller wake-up module
Output end is waken up to be connected with the wake-up input terminal IGN_ON of controller.
Controller wake-up module include: triode Q1 collector respectively with the first end of resistance R48, capacitor C42
One end is connected with the wake-up input terminal IGN_ON of controller, and the base stage of triode Q1 is connected with the first end of resistance R47, resistance
The second end of R47 is connected with the first end of the first end of resistance R45 and resistance R46 respectively, the second end of resistance R45 respectively with electricity
First end, the first end of polar capacitor EC2 for holding C200 are connected with the cathode of diode D2, diode D2 it is positive respectively with electricity
The first end for holding C18 is connected with igniting output terminal IGN, the second end and the power output end phase of power supply output module of resistance R48
Even, the second end of capacitor C18, the second end of capacitor C200, the second end of polar capacitor EC2, the second end of resistance R46, three poles
The emitter of pipe Q1 and the second end of capacitor C42 are connected with power ground respectively.In the present embodiment, the type of polar capacitor EC2
It number is 22uF/50V, the resistance value of the model 0.01uF/250V of capacitor C200, resistance R45 is 30K, and the resistance value of resistance R46 is
The resistance value of 46K (1%), resistance R47 are 4.7K, and the resistance value of resistance R48 is 4.7K, the model 0.068uF/50V of capacitor C42,
The model 0.01uF/250V of the model 1N4007 of the model MMBT5551 of triode Q1, diode D2, capacitor C18.
In a kind of preferred embodiment of the utility model, power supply output module includes: the bootstrapping electricity of power supply chip U3
Hold end BOOT be connected with the first end of capacitor C3, the second end of capacitor C3 respectively with the cathode of diode D18, inductance L2 first
End, the first end of resistance R12 are connected with the switching node end SW of power supply chip U3, diode D18 it is positive respectively with power supply core
The ground terminal GND of piece U3, the first end of polar capacitor EC1, the first end of capacitor C57, the first end of capacitor C11, polar capacitor
The first end of EC8, the first end of capacitor C14, the first end of capacitor C15, the first end of resistance R11 are connected with power ground, inductance
The second end of L2 respectively with the second end of polar capacitor EC1, the second end of polar capacitor EC8, the second end of capacitor C14, capacitor
The second end of C15, the first end of resistance R17, the first end of resistance R18 are connected with the second end of resistance R48, and the of resistance R12
Two ends are connected with the first end of capacitor C32, and the second end of capacitor C32 is connected with power ground, the second end and resistance of capacitor C57
The first end of R16 is connected, the second end of the capacitor C11 end COMP compared with the second end of resistance R16 and power supply chip U3 respectively
Be connected, the second end of resistance R11 respectively with the second end of resistance R17, the error input terminal FB of power supply chip U3 and resistance R18
Second end is connected, and the pad end PAD of power supply chip U3 is connected with power ground；The power input VIN of power supply chip U3 respectively with
The first end of resistance R22, the first end of polar capacitor EC6, the first end of capacitor C82, the first end of capacitor C43, capacitor C8
First end, the first end of capacitor C7, the first end of capacitor C275, the cathode of diode D3, the cathode of diode D4, diode D6
Cathode be connected with the cathode of diode D7, the second end of polar capacitor EC6, the second end of capacitor C82, capacitor C43 second
End, the second end of capacitor C8, the second end of capacitor C7, the second end of capacitor C275, the first end of resistance R23 and resistance R87
First end is connected with power ground respectively, and the second end of resistance R22 and the second end of resistance R23 are enabled with power supply chip U3 respectively
EN is held to be connected, the second end of resistance R87 is connected with the timing end RT/CLK of power supply chip U3, the anode and diode of diode D3
The anode of D4 is connected with battery BAT respectively, the anode of diode D6 and diode D7 it is positive respectively with igniting output terminal IGN phase
Even.In the present embodiment, the model 1N4007 of diode D3, diode D4, diode D6 and diode D7, polar capacitor
The model 2.2uF/50V of the model 4.7uF/50V/X5R of the model 22uF/50V of EC6, capacitor C82, capacitor C43, electricity
Hold the model 0.1uF/50V of C8, the model 1uF/50V of the model 0.01uF/50V of capacitor C7, capacitor C275, resistance
The resistance value of R22 is 365K, and the resistance value of resistance R23 is 86.6K, and the resistance value of resistance R87 is 60.4K (1%), the model of capacitor C3
The resistance value of 0.1uF/50V, resistance R12 are 3K, the model MS104R of the model 0.068uF/50V of capacitor C32, inductance L2
(100uH), the model 100uF/16V of the model B560C of diode D18, polar capacitor EC1, the model of polar capacitor EC8
For 100uF/16V, the model 0.01uF/50V of the model 0.01uF/50V of capacitor C14, capacitor C15, the resistance value of resistance R11
For 10K (1%), the resistance value of resistance R17 is 105K (1%), and the resistance value of resistance R18 is 105K (1%), and the resistance value of resistance R16 is
The model 6800pF/50V of the model 47pF/50V of 14.3K (1%), capacitor C11, capacitor C57.Wherein, power supply exports mould
Block is not limited to the power circuit of the+5V of above-mentioned offer, high current, is also possible to other types of offer+5V, high-current supply
Circuit.
In a kind of preferred embodiment of the utility model, the model TPS54340-Q1 of power supply chip U3.
In a kind of preferred embodiment of the utility model, the model MB96F696 of controller.
In the present embodiment, polar capacitor ECX is the capacitor of polarized, and capacitor CX, capacitor CXX and capacitor CXXX are nothing
Polar capacitor, X indicate number 0~9.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model has the right to require and its equivalent limits.
Claims (4)
1. a kind of intelligence TFT instrument controller wake-up circuit characterized by comprising the power input of controller wake-up module
End is connected with the power output end of power supply output module, the wake-up input for waking up output end and controller of controller wake-up module
IGN_ON is held to be connected；
Controller wake-up module includes: the collector first end with the first end of resistance R48, capacitor C42 respectively of triode Q1
It is connected with the wake-up input terminal IGN_ON of controller, the base stage of triode Q1 is connected with the first end of resistance R47, resistance R47's
Second end is connected with the first end of the first end of resistance R45 and resistance R46 respectively, the second end of resistance R45 respectively with capacitor
The first end of C200, the first end of polar capacitor EC2 are connected with the cathode of diode D2, diode D2 anode respectively with capacitor
The first end of C18 is connected with igniting output terminal IGN, and the second end of resistance R48 is connected with the power output end of power supply output module,
The second end of capacitor C18, the second end of capacitor C200, the second end of polar capacitor EC2, the second end of resistance R46, triode Q1
Emitter and the second end of capacitor C42 be connected respectively with power ground.
2. intelligence TFT instrument controller wake-up circuit according to claim 1, which is characterized in that power supply output module packet
Include: the bootstrap capacitor end BOOT of power supply chip U3 is connected with the first end of capacitor C3, the second end of capacitor C3 respectively with diode
The cathode of D18, the first end of inductance L2, the first end of resistance R12 are connected with the switching node end SW of power supply chip U3, diode
D18 anode respectively with the ground terminal GND of power supply chip U3, the first end of polar capacitor EC1, the first end of capacitor C57, capacitor
The first end of C11, the first end of polar capacitor EC8, the first end of capacitor C14, the first end of capacitor C15, resistance R11 first
End be connected with power ground, the second end of inductance L2 respectively with the second end of polar capacitor EC1, the second end of polar capacitor EC8, electricity
Hold the second of the second end of C14, the second end of capacitor C15, the first end of resistance R17, the first end of resistance R18 and resistance R48
End is connected, and the second end of resistance R12 is connected with the first end of capacitor C32, and the second end of capacitor C32 is connected with power ground, capacitor
The second end of C57 is connected with the first end of resistance R16, the second end of capacitor C11 respectively with the second end of resistance R16 and power supply core
The comparison end COMP of piece U3 is connected, and the second end of resistance R11 is defeated with the error of the second end of resistance R17, power supply chip U3 respectively
Enter to hold FB and the second end of resistance R18 to be connected, the pad end PAD of power supply chip U3 is connected with power ground；The electricity of power supply chip U3
Source input terminal VIN respectively with the first end of resistance R22, the first end of polar capacitor EC6, the first end of capacitor C82, capacitor C43
First end, the first end of capacitor C8, the first end of capacitor C7, the first end of capacitor C275, diode D3 cathode, diode
The cathode of D4, the cathode of diode D6 are connected with the cathode of diode D7, and the second of the second end of polar capacitor EC6, capacitor C82
End, the second end of capacitor C43, the second end of capacitor C8, the second end of capacitor C7, the second end of capacitor C275, resistance R23
The first end of one end and resistance R87 are connected with power ground respectively, the second end of the second end of resistance R22 and resistance R23 respectively with
The enable end EN of power supply chip U3 is connected, and the second end of resistance R87 is connected with the timing end RT/CLK of power supply chip U3, diode
The anode of D3 and the anode of diode D4 are connected with battery BAT respectively, and positive and diode D7 the anode of diode D6 is respectively
It is connected with igniting output terminal IGN.
3. intelligence TFT instrument controller wake-up circuit according to claim 2, which is characterized in that the type of power supply chip U3
Number be TPS54340-Q1.
4. intelligence TFT instrument controller wake-up circuit according to claim 1, which is characterized in that the model of controller
MB96F696。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820892597.9U CN208324896U (en) | 2018-06-10 | 2018-06-10 | A kind of intelligence TFT instrument controller wake-up circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820892597.9U CN208324896U (en) | 2018-06-10 | 2018-06-10 | A kind of intelligence TFT instrument controller wake-up circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208324896U true CN208324896U (en) | 2019-01-04 |
Family
ID=64773611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820892597.9U Expired - Fee Related CN208324896U (en) | 2018-06-10 | 2018-06-10 | A kind of intelligence TFT instrument controller wake-up circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208324896U (en) |
-
2018
- 2018-06-10 CN CN201820892597.9U patent/CN208324896U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20200610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |