CN202095012U - Television with battery electric quantity consumption detection function - Google Patents
Television with battery electric quantity consumption detection function Download PDFInfo
- Publication number
- CN202095012U CN202095012U CN2011201555413U CN201120155541U CN202095012U CN 202095012 U CN202095012 U CN 202095012U CN 2011201555413 U CN2011201555413 U CN 2011201555413U CN 201120155541 U CN201120155541 U CN 201120155541U CN 202095012 U CN202095012 U CN 202095012U
- Authority
- CN
- China
- Prior art keywords
- power supply
- time clock
- clock circuit
- television
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title abstract description 3
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 claims abstract description 8
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Abstract
The utility model provides a television with a battery electric quantity consumption detection function, which comprises a television main board system, a real-time clock circuit and a power supply module. A VCC1 pin in the power supply module supplies power to the power supply VCC-A of the real-time clock circuit through a voltage converter and an anti-reverse-power-supply Schottky diode VD1 and a current limiting resistor R1 which are serially connected, and charges a capacitor C1 at the same time. One end of the capacitor C1 is grounded. An interface is added on the television main board system, is connected to the power supply VCC-A through a resistor R2 and is grounded through a resistor R3 at the same time. By adding an interface circuit on the television main board system, when the television is powered on, the television main board system firstly detects whether the real-time clock circuit is electrified or not, if so, the clock information of the real-time clock circuit is directly read, and if not, the television main board system conducts clock zero clearing or prompts a user to reset time.
Description
Technical field
The utility model relates to technical field of television sets, relates in particular to a kind of television set with battery power consumption measuring ability.
Background technology
Television set as shown in Figure 1 comprises TV SKD system 11, the real time clock circuit 12 and the power module 13 of real-time clock is provided for TV SKD system 11.
Wherein, real time clock circuit 12 is powered by VCC-A, television boot-strap, VCC-A by the VCC1 pin in the power module 13 through electric pressure converter 14, the Schottky diode VD1 of the anti-reverse power supply through connecting and current-limiting resistance R1 power supply again, this moment, VCC1 also can give battery or super capacitor C1 charging through VCC_A.
When television set shuts down, the VCC1 dead electricity, 11 outages of TV SKD system, but real time clock circuit 12 can make that real time clock circuit 12 still can operate as normal by described battery or super capacitor C1 power supply.
When television set was started shooting once more, TV SKD system 11 read clock information in the real time clock circuit 12 by communication interface.But, if the television set shutdown is too of a specified duration, when perhaps other reasons causes battery or super capacitor C1 not to have electricity, real time clock circuit 12 will quit work, if this moment television boot-strap, the MCU(Micro Control Unit in the TV SKD system, micro-control unit) can read the clock information before real time clock circuit 12 electric quantity consumptions, this clock information is inaccurate, and this has just caused the inaccurate of television set clock data.
The utility model content
For this reason, technical problem to be solved in the utility model is: a kind of television set with battery power consumption measuring ability is provided, and the clock data that reads during with the assurance television boot-strap all is accurately.
So, the utility model provides a kind of television set with battery power consumption measuring ability, comprise the TV SKD system, the real time clock circuit and the power module of real-time clock are provided for the TV SKD system, wherein the VCC1 pin in the power module is through electric pressure converter, and the Schottky diode VD1 of anti-reverse power supply of series connection and the current-limiting resistance R1 power supply VCC-A power supply of giving real time clock circuit, give capacitor C 1 charging simultaneously, capacitor C 1 other end ground connection, wherein, in the TV SKD system, increase by an interface, this interface is connected to power supply VCC-A by resistance R 2, this interface also passes through resistance R 3 ground connection, R3＞2R2 simultaneously.
Described resistance R 2 and resistance R 3 values arrive between the 300K Europe in 10K Europe.
Television set with battery power consumption measuring ability described in the utility model, by in the TV SKD system, increasing by an interface, this interface is connected to the power supply VCC-A of real time clock circuit by resistance R 2, this interface is also by resistance R 3 ground connection simultaneously, when making television boot-strap, whether the TV SKD system can at first detect real time clock circuit has, if have, then directly read the real time clock circuit clock information, if there is not electricity, then zero clearing of TV SKD system clock or prompting user reset the time.
Description of drawings
Fig. 1 is the TV set circuit figure of band real time clock circuit in the prior art;
Fig. 2 is the TV set circuit figure with battery power consumption measuring ability described in the utility model.
Embodiment
Below, in conjunction with the accompanying drawings the utility model is described in detail.
As shown in Figure 2, present embodiment provides a kind of television set with battery power consumption measuring ability, this television set comprises: TV SKD system 21, provide the real time clock circuit 22 and the power module 23 of real-time clock for the TV SKD system, wherein the VCC1 pin in the power module 23 is powered through the power supply VCC-A that the Schottky diode VD1 and the current-limiting resistance R1 of the anti-reverse power supply of electric pressure converter 24 and series connection give real time clock circuit 22, give capacitor C 1 charging simultaneously, capacitor C 1 other end ground connection.In the described television set of present embodiment, in TV SKD system 21, increase by a DEC interface, this interface is connected to power supply VCC-A by resistance R 2, and this interface is also by resistance R 3 ground connection simultaneously.Wherein, R3＞2R2, resistance R 2 and resistance R 3 values arrive between the 300K Europe in 10K Europe.
So, when television boot-strap, the MCU(Micro Control Unit in the TV SKD system 21, micro-control unit), at first detecting the DEC interface is height or low.If the power supply VCC-A of real time clock circuit 22 does not have, be that battery or super capacitor C1 be not when having electricity, charging also needs a time to VCC-A because of the VCC1 pin of power module 23, and the time of the detection of the MCU in the TV SKD system 21 real time clock circuit 22 gives the power supply VCC-A charging interval of real time clock circuit 22 fast than power module 23, so this moment, it is low that the MCU in the TV SKD system 21 detects the DEC interface.If the power supply VCC-A of real time clock circuit 22 has electricity, when promptly battery or super capacitor C1 had electricity, during start, the MCU in the TV SKD system 21 detected the DEC interface for high.
As seen, by judging that the DEC interface is a height or low, whether the power supply that just can judge real time clock circuit 22 has.If TV SKD system 21 detects the power supply of real time clock circuit 22 electricity is arranged, then can from real time clock circuit 22, read clock information; If detecting the power supply of real time clock circuit 22, TV SKD system 21 do not had electricity, because of real time clock circuit 22 does not have electricity can't operate as normal, if read information from 22 li of real time clock circuits this moment again will be wrong, therefore, we can set and allow TV SKD system 21 directly give the clock information zero clearing, perhaps point out the user to reset the time.
In sum, the described television set of present embodiment with battery power consumption measuring ability, by in the TV SKD system, increasing by an interface, this interface is connected to the power supply VCC-A of real time clock circuit by resistance R 2, this interface is also by resistance R 3 ground connection simultaneously, when making television boot-strap, whether the TV SKD system can at first detect real time clock circuit has, if have, then directly read the real time clock circuit clock information, if there is not electricity, then zero clearing of TV SKD system clock or prompting user reset the time.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (2)
1. television set with battery power consumption measuring ability, comprise the TV SKD system, the real time clock circuit and the power module of real-time clock are provided for the TV SKD system, wherein the VCC1 pin in the power module is through electric pressure converter, and the Schottky diode VD1 of anti-reverse power supply of series connection and the current-limiting resistance R1 power supply VCC-A power supply of giving real time clock circuit, give capacitor C 1 charging simultaneously, capacitor C 1 other end ground connection, it is characterized in that, in the TV SKD system, increase by an interface, this interface is connected to power supply VCC-A by resistance R 2, this interface also passes through resistance R 3 ground connection, R3＞2R2 simultaneously.
2. television set according to claim 1 is characterized in that, described resistance R 2 and resistance R 3 values arrive between the 300K Europe in 10K Europe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201555413U CN202095012U (en) | 2011-05-16 | 2011-05-16 | Television with battery electric quantity consumption detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201555413U CN202095012U (en) | 2011-05-16 | 2011-05-16 | Television with battery electric quantity consumption detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202095012U true CN202095012U (en) | 2011-12-28 |
Family
ID=45370051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201555413U Expired - Fee Related CN202095012U (en) | 2011-05-16 | 2011-05-16 | Television with battery electric quantity consumption detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202095012U (en) |
-
2011
- 2011-05-16 CN CN2011201555413U patent/CN202095012U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202275129U (en) | On/off detection circuit for relay of smart electricity meter | |
| CN201269902Y (en) | Break-down detection circuit for electronic electrical energy meter | |
| CN206650446U (en) | A kind of low-power consumption standby circuit of BMS | |
| CN202798027U (en) | Bidirectional power supply circuit of single USB interface | |
| CN102998505B (en) | Battery undervoltage detection circuit | |
| CN101950820A (en) | Static zero consumption energy-saving charging device | |
| CN104319564A (en) | Lightning charging data line capable of displaying charging state | |
| CN103594877B (en) | A kind of power supply unit connecting line with anti-lost prompt facility and full electric prompt facility | |
| CN109217425A (en) | A kind of charger circuit and its intelligent charge control method | |
| CN205248853U (en) | Power supply circuit | |
| CN204190446U (en) | A kind of accumulator routing inspection circuit | |
| CN205983517U (en) | A power saving circuit for passive label | |
| CN202488368U (en) | Resistance-capacitance voltage-dropping power supply device capable of reducing standby power loss | |
| CN202095012U (en) | Television with battery electric quantity consumption detection function | |
| CN101697410B (en) | Short-circuit protection circuit adopted in battery charger circuit | |
| CN103326433B (en) | Powering portable devices control circuit and portable monitor | |
| CN202772653U (en) | Dual battery mobile phone | |
| CN202340141U (en) | Charging equipment | |
| CN201828602U (en) | Power failure detection circuit with low power consumption | |
| CN202888790U (en) | Resettable over/under-voltage protector based on one-chip microcomputer | |
| CN104701968A (en) | Power switch control system and method | |
| CN204179397U (en) | A kind of Lightning charging data line showing charged state | |
| CN208539557U (en) | Protective device for lithium battery | |
| CN203520090U (en) | Hand-held terminal hard switching circuit | |
| CN202496004U (en) | Reset circuit and television |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20160516 |