CN201655315U - Low-power consumption and portable DVD - Google Patents
Low-power consumption and portable DVD Download PDFInfo
- Publication number
- CN201655315U CN201655315U CN2010201623469U CN201020162346U CN201655315U CN 201655315 U CN201655315 U CN 201655315U CN 2010201623469 U CN2010201623469 U CN 2010201623469U CN 201020162346 U CN201020162346 U CN 201020162346U CN 201655315 U CN201655315 U CN 201655315U
- Authority
- CN
- China
- Prior art keywords
- control microprocessor
- power supply
- main control
- charging chip
- battery management
- 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
Abstract
The utility model discloses a low-power consumption and portable DVD. The DVD is provided with a main control microprocessor and a power supply control microprocessor. A servo drive circuit, a display screen, a back light drive circuit, a flash, a SDRAM (synchronous dynamic random access memory), an audio conversion circuit and a battery management charging chip are connected with the main control microprocessor. An adaptor and a battery are connected with the battery management charging chip. The power supply control microprocessor is connected with the main control microprocessor and the battery management charging chip. The CPU of the main control microprocessor is respectively controlled by the power supply control microprocessor according to the work states of the portable DVD to enter three different basic power supply modes: normal running, idle and power failure. Meanwhile, the voltage of all circuits of the battery management charging chip can be cut off by the power supply control microprocessor, parts not working are switched off, power waste phenomena due to Power On standby can be avoided, and the service life of the battery is extended.
Description
Technical field:
The utility model relates to a kind of portable DVD, especially a kind of multiple functional, save electric energy, prolong the battery portable DVD of low-power consumption of service time.
Background technology:
At present, more popular on the market is multiple functional portable DVD player, promptly is provided with DVD module, DTV module, SD card module, AUX (outside input) module, LCD and loudspeaker or the like.Circuit structure all is to be connected to servo driving circuit, display screen, backlight drive circuit, FLASH, SDRAM, audio conversion circuit and battery management charging chip with main control microprocessor basically, be connected to AC adapter and dc-battery with the battery management charging chip, the output of audio conversion circuit is joined by audio amplifier circuit and loudspeaker.After the start, civil power or battery can provide operating voltage for each circuit simultaneously by the battery management charging chip.Because the user can only use a module at one time, so all the other modules all are in the waiting status that powers on, so just exist the waste of energy phenomenon that produces because of the wait that powers on, especially multiple functional portable DVD player, its waste of energy phenomenon is more serious, cause shorten the service time of battery, not only increase cost of products, small product size is increased and strengthen battery capacity.Simultaneously, because the volume of portable DVD player is less, excessive power consumption increases thermal value, and reliability of products is reduced.
Summary of the invention:
The utility model is for the above-mentioned technical matters of existing in prior technology, provide a kind of multiple functional, save electric energy, prolong the battery portable DVD of low-power consumption of service time.
Technical solution of the present utility model is: the portable DVD of a kind of low-power consumption, main control microprocessor is arranged, be connected to servo driving circuit, display screen, backlight drive circuit, FLASH, SDRAM, audio conversion circuit and battery management charging chip with main control microprocessor, be connected to adapter and battery with the battery management charging chip, it is characterized in that: be provided with the power supply control microprocessor, power supply control microprocessor and main control microprocessor and battery management charging chip join.
Be connected to external crystal oscillation circuit with the power supply control microprocessor.
The utility model can be according to the duty of portable DVD, and the CPU that controls main control microprocessor by the power supply control microprocessor respectively enters three kinds of different basic powering modes: normal operation, free time and power down.Idle part is turn-offed in the shutoff of each road voltage of power supply control microprocessor controllable power managing chip simultaneously; When working if desired, with the mode of interrupting the supply voltage on this road is opened again, made it can operate as normal, can avoid waiting for the waste of energy phenomenon that produces, prolongation battery service time because of powering on.
Description of drawings:
Fig. 1 is the schematic block circuit diagram of the utility model embodiment.
Embodiment:
Below in conjunction with description of drawings embodiment of the present utility model.As shown in Figure 1: the portable DVD of a kind of low-power consumption, main control microprocessor is arranged, be connected to servo driving circuit, display screen, backlight drive circuit, FLASH, SDRAM, audio conversion circuit and battery management charging chip with main control microprocessor, the output of audio conversion circuit is joined by audio amplifier circuit and loudspeaker.Be connected to adapter and battery with the battery management charging chip, be provided with the power supply control microprocessor, power supply control microprocessor and main control microprocessor and battery management charging chip join.Be connected to external crystal oscillation circuit with the power supply control microprocessor.In the time of power supply control microprocessor processing events, that is just with the high external crystal oscillation circuit of frequency, when being in idle condition as the power supply control microprocessor, just with low-frequency inner crystal oscillator.
Claims (2)
1. portable DVD of low-power consumption, main control microprocessor is arranged, be connected to servo driving circuit, display screen, backlight drive circuit, FLASH, SDRAM, audio conversion circuit and battery management charging chip with main control microprocessor, be connected to adapter and battery with the battery management charging chip, it is characterized in that: be provided with the power supply control microprocessor, power supply control microprocessor and main control microprocessor and battery management charging chip join.
2. the portable DVD of low-power consumption according to claim 1 is characterized in that: be connected to external crystal oscillation circuit with the power supply control microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201623469U CN201655315U (en) | 2010-04-19 | 2010-04-19 | Low-power consumption and portable DVD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201623469U CN201655315U (en) | 2010-04-19 | 2010-04-19 | Low-power consumption and portable DVD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655315U true CN201655315U (en) | 2010-11-24 |
Family
ID=43120559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201623469U Expired - Fee Related CN201655315U (en) | 2010-04-19 | 2010-04-19 | Low-power consumption and portable DVD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279306A (en) * | 2011-06-20 | 2011-12-14 | 金天 | Signal-driving alternated current/direct current digital ampere meter with low power consumption |
| CN104349104A (en) * | 2013-08-01 | 2015-02-11 | 天津天地伟业数码科技有限公司 | Portable trial video recorder battery electric quantity management system and management method |
-
2010
- 2010-04-19 CN CN2010201623469U patent/CN201655315U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279306A (en) * | 2011-06-20 | 2011-12-14 | 金天 | Signal-driving alternated current/direct current digital ampere meter with low power consumption |
| CN104349104A (en) * | 2013-08-01 | 2015-02-11 | 天津天地伟业数码科技有限公司 | Portable trial video recorder battery electric quantity management system and management method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101714021B (en) | Computer of hybrid system | |
| TWI455446B (en) | Power supply system and method thereof for electronic device | |
| TW201426274A (en) | Power supply unit and method of supplying power | |
| CN2901666Y (en) | Power source managing device | |
| CN101329597B (en) | Portable on-chip processing system of multimedia processing platform and power supply management method | |
| CN101771839B (en) | Circuit for lowering liquid crystal display (LCD) TV standby power consumption | |
| CN102104277A (en) | Redundant power supply control method, device and system | |
| CN109038784A (en) | A kind of Low-power-consumptiodormancy dormancy device, the system and method for solar controller | |
| CN201655315U (en) | Low-power consumption and portable DVD | |
| CN201550193U (en) | TV set top box | |
| CN105487638A (en) | Electronic circuit system and power consumption reducing method thereof | |
| CN104571465A (en) | Design method for achieving CPU (Central Processing Unit) power supply phase dynamic adjustment | |
| CN102800182B (en) | Wireless transceiving module and inverter system thereof | |
| CN102495576B (en) | Ultra-low power circuit control system and method thereof | |
| CN207164931U (en) | A kind of low-consumption wireless doorbell | |
| CN111065986A (en) | Mechanism for entering or exiting retention level voltage when system on chip is in low power mode | |
| CN201255657Y (en) | Electronic hanging scale with automatic sleeping and waking function | |
| CN205986319U (en) | Supply circuit is used at little consumption data transmission terminal | |
| CN213043666U (en) | Low-power consumption standby electronic equipment | |
| CN206640389U (en) | A kind of motor of rolling shutter door control device | |
| CN209297142U (en) | A kind of battery control device and system | |
| CN109739160A (en) | A kind of battery control device and system | |
| CN201726327U (en) | Power-supply control circuit for large-size liquid crystal display | |
| CN205229881U (en) | Hand -held type electronic equipment's switching on and shutting down circuit | |
| CN201274175Y (en) | Energy-saving portable DVD player |
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 |
Granted publication date: 20101124 Termination date: 20150419 |
|
| EXPY | Termination of patent right or utility model |