CN203522310U - Power supply circuit of digital micromirror chip and digital micromirror chip - Google Patents
Power supply circuit of digital micromirror chip and digital micromirror chip Download PDFInfo
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- CN203522310U CN203522310U CN201320604893.1U CN201320604893U CN203522310U CN 203522310 U CN203522310 U CN 203522310U CN 201320604893 U CN201320604893 U CN 201320604893U CN 203522310 U CN203522310 U CN 203522310U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model provides a power supply circuit of a digital micromirror chip and the digital micromirror chip. The power supply circuit comprises a first voltage converter, a second voltage converter, a third voltage converter, a diode and a first capacitor, wherein the first voltage converter can convert obtained supply voltage into first voltage, second voltage and third voltage to be output respectively; the second voltage converter can convert obtained supply voltage into fourth voltage to be output; the third voltage converter can convert obtained supply voltage into fifth voltage to be output; the positive pole of the diode is connected with a power source, the negative pole of the diode is connected with the input end of the second voltage converter and the input end of the third voltage converter, a positive plate of the first capacitor is connected with the negative pole of the diode, and a negative plate of the first capacitor is connected with a grounded terminal. When a projection machine without a battery is powered off suddenly, electric quantity stored in the first capacitor can continue to supply power for the second voltage converter and the third voltage converter for a period of time, and then the power down time of the fourth voltage and the power down time of the fifth voltage are delayed.
Description
Technical field
The utility model relates to power supply circuits technical field, more particularly, relates to a kind of power supply circuits and digital micro-mirror chip of digital micro-mirror chip.
Background technology
Digital micro-mirror chip (Digital Micro mirror Device, DMD) is the crucial treatment element that digital light is processed (Digital Light Procession, DLP) shadow casting technique, in order to realize the digit optical processing procedure of DLP shadow casting technique.DMD can provide 1,670 ten thousand kinds of colors and 256 sections of gray-levels, thereby can guarantee the gorgeous exquisiteness of activity video picture color, naturally true to nature of DLP projector projection.
Characteristic due to DMD itself, when normally being worked, DMD needs five kinds of different supply power voltage power supplies, when electric under these five kinds of different supply power voltages, there is sequential requirement, three kinds of supply power voltages are wherein lower electricity first, postpone after a period of time, remaining two kinds of supply power voltages are lower electricity again, for the projector of charged pool not, when normal shutdown, by simple circuit, can realize this function.
But, when due to some abnormal conditions, while making the projector unexpected power-off of charged pool not, there will be five kinds of supply power voltages with the situation of electricity at present, therefore, easily DMD is caused to damage.
Utility model content
In view of this; the utility model provides a kind of power supply circuits and digital micro-mirror chip of digital micro-mirror chip; when realizing the projector unexpected power-off of charged pool not, still can meet the sequential requirement of electricity under five kinds of different supply power voltages, to protect digital micro-mirror chip not to be damaged.
Power supply circuits for digital micro-mirror chip, comprising: the first electric pressure converter, second voltage transducer, tertiary voltage transducer, diode and the first capacitor;
The input of described the first electric pressure converter connects power supply, the first output is exported the first voltage that described the first electric pressure converter conversion electric power voltage obtains, the second output is exported described the first electric pressure converter and is changed the second voltage that described supply voltage obtains, and the 3rd output is exported described the first electric pressure converter and changed the tertiary voltage that described supply voltage obtains;
The input of described second voltage transducer connects the negative electrode of described diode, power supply described in the anodic bonding of described diode, and the output of described second voltage transducer is exported described second voltage transducer and is changed the 4th voltage that described supply voltage obtains;
The input of described tertiary voltage transducer connects the input of described second voltage transducer, and output is exported described tertiary voltage transducer and changed the 5th voltage that described supply voltage obtains;
The positive plate of described the first capacitor connects the negative electrode of described diode, and negative plate connects earth terminal.
Preferably, also comprise: the second capacitor;
The positive plate of described the second capacitor connects the negative electrode of described diode, and negative plate connects earth terminal.
Preferably, the capacitance of described the first capacitor is identical with the capacitance of described the second capacitor.
A digital micro-mirror chip, comprising: the power supply circuits of digital micro-mirror chip, and digital micro-mirror chip body;
The power supply circuits of described digital micro-mirror chip comprise: the first electric pressure converter, second voltage transducer, tertiary voltage transducer, diode and the first capacitor;
The input of described the first electric pressure converter connects power supply, the first output is exported the first voltage that described the first electric pressure converter conversion electric power voltage obtains, the second output is exported described the first electric pressure converter and is changed the second voltage that described supply voltage obtains, and the 3rd output is exported described the first electric pressure converter and changed the tertiary voltage that described supply voltage obtains;
The input of described second voltage transducer connects the negative electrode of described diode, power supply described in the anodic bonding of described diode, and the output of described second voltage transducer is exported described second voltage transducer and is changed the 4th voltage that described supply voltage obtains;
The input of described tertiary voltage transducer connects the input of described second voltage transducer, and output is exported described tertiary voltage transducer and changed the 5th voltage that described supply voltage obtains;
The positive plate of described the first capacitor connects the negative electrode of described diode, and negative plate connects earth terminal;
The first feeder ear of described digital micro-mirror chip body is connected with described first output of described the first electric pressure converter; The second feeder ear is connected with described second output of described the first electric pressure converter; The 3rd feeder ear is connected with described the 3rd output of described the first electric pressure converter; The 4th feeder ear is connected with the described output of described second voltage transducer; The 5th feeder ear is connected with the described output of described tertiary voltage transducer.
Preferably, also comprise: the second capacitor;
The positive plate of described the second capacitor connects the negative electrode of described diode, and negative plate connects earth terminal.
Preferably, the capacitance of described the first capacitor is identical with the capacitance of described the second capacitor.
From above-mentioned technical scheme, can find out, the utility model provides a kind of power supply circuits and digital micro-mirror chip of digital micro-mirror chip, and power supply circuits comprise: the first electric pressure converter, second voltage transducer, tertiary voltage transducer, diode and the first capacitor; The first electric pressure converter can be converted to the supply voltage of acquisition respectively the first voltage, second voltage and tertiary voltage output, second voltage transducer can be converted to the supply voltage of acquisition the 4th Voltage-output, tertiary voltage transducer can be converted to the supply voltage of acquisition the 5th Voltage-output, the anodic bonding power supply of diode, negative electrode connects the input of second voltage transducer and the input of tertiary voltage transducer, the positive plate of the first capacitor connects the negative electrode of diode, and negative plate connects earth terminal.When the projector unexpected power-off of charged pool not; the electric weight of the first capacitor stores continues power supply a period of time can to second voltage transducer and tertiary voltage transducer; thereby the lower electricity time of delay control four voltages and the 5th voltage; meet the sequential requirement of digital micro-mirror chip to electricity under different power voltage, protected digital micro-mirror chip not to be damaged.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the circuit diagram of the power supply circuits of the disclosed a kind of digital micro-mirror chip of the utility model embodiment;
Fig. 2 is the circuit diagram of the power supply circuits of the disclosed another kind of digital micro-mirror chip of the utility model embodiment;
Fig. 3 is the schematic diagram of the disclosed a kind of digital micro-mirror chip of the utility model embodiment;
Fig. 4 is the schematic diagram of the disclosed another kind of digital micro-mirror chip of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, the utility model embodiment discloses a kind of circuit diagram of power supply circuits of digital micro-mirror chip, comprising: the first electric pressure converter 11, second voltage transducer 12, tertiary voltage transducer 13, diode D1 and the first capacitor C1;
The input of the first electric pressure converter 11 connects power Vcc, the first output is exported the first voltage U 1 that the first electric pressure converter 11 conversion electric power voltages obtain, the second output is exported the second voltage U2 that the described supply voltage of the first electric pressure converter 11 conversion obtains, and the 3rd output is exported the tertiary voltage U3 that the described supply voltage of the first electric pressure converter 11 conversion obtains;
The input of second voltage transducer 12 connects the negative electrode of diode D1, the anodic bonding power Vcc of diode D1, the 4th voltage U 4 that the described supply voltage of output output second voltage transducer 12 conversion of second voltage transducer 12 obtains;
The input of tertiary voltage transducer 13 connects the input of second voltage transducer 12, the 5th voltage U 5 that the described supply voltage of output output tertiary voltage transducer 13 conversion obtains;
The positive plate of the first capacitor C1 connects the negative electrode of diode D1, and negative plate connects earth terminal.
In summary it can be seen, when the projector of charged pool does not normally work, the first capacitor C1 is in charged state; When the projector unexpected power-off of charged pool not; because the input of second voltage transducer 12 is connected with the input of tertiary voltage transducer 13; and be all connected with the positive plate of the first capacitor C1; therefore; the electric weight of the first capacitor C1 storage continues power supply a period of time can to second voltage transducer 12 and tertiary voltage transducer 13 simultaneously; thereby the lower electricity time of delay control four voltage U 4 and the 5th voltage U 5; meet the sequential requirement of digital micro-mirror chip to electricity under different power voltage, protected digital micro-mirror chip not to be damaged.
Wherein, diode D1 can prevent that the electric weight of the first capacitor C1 storage from dischargeing by other loops.
The first electric pressure converter 11, second voltage transducer 12 and tertiary voltage transducer 13 can be all DC-DC transducer.
The voltage of power Vcc can be 5V, and the voltage of the first voltage U 1 can be 8.5V, and the voltage of second voltage U2 can be 16V, and the voltage of tertiary voltage U3 can be-10V, and the voltage of the 4th voltage U 4 can be 2.5V, and the voltage of the 5th voltage U 5 can be 1.9V.
On basis embodiment illustrated in fig. 1, referring to Fig. 2, the utility model discloses the circuit diagram of the power supply circuits of another kind of digital micro-mirror chip, from embodiment illustrated in fig. 1 different, the embodiment shown in Fig. 2 also comprises: the second capacitor C2;
The positive plate of the second capacitor C2 connects the negative electrode of diode D1, and negative plate connects earth terminal.
Be understandable that, the 4th voltage U 4 is relevant with the capacitance of the first capacitor C1 with the lower electric delay time of the 5th voltage U 5, when the capacitance due to the first capacitor C1 is lower while causing the electric weight of its storage not enough, may make the lower electric delay time of the 4th voltage U 4 and the 5th voltage U 5 not meet the sequential requirement of digital micro-mirror chip to electricity under supply power voltage, therefore, by increasing by the second capacitor C2, can increase total electric weight of storage, and then the lower electricity time of delay control four voltage U 4 and the 5th voltage U 5, meet the sequential requirement of digital micro-mirror chip to electricity under supply power voltage.
Certainly, we can also make the first capacitor C1 into the electric capacity that capacitance is larger, or increase several capacitors according to actual needs more, and the utility model does not limit at this.
Preferably, the capacitance of the capacitance of the first capacitor C1 and the second capacitor C2 can be identical, can be all 100uF.
Corresponding with the power supply circuits of above-mentioned digital micro-mirror chip, the utility model also provides a kind of digital micro-mirror chip.
Referring to Fig. 3, the utility model discloses a kind of schematic diagram of digital micro-mirror chip, comprising: the power supply circuits 14 of digital micro-mirror chip, and digital micro-mirror chip body 15;
The power supply circuits 14 of digital micro-mirror chip comprise: the first electric pressure converter 11, second voltage transducer 12, tertiary voltage transducer 13, diode D1 and the first capacitor C1;
The input of the first electric pressure converter 11 connects power Vcc, the first output is exported the first voltage U 1 that the first electric pressure converter 11 conversion electric power voltages obtain, the second output is exported the second voltage U2 that the described supply voltage of the first electric pressure converter 11 conversion obtains, and the 3rd output is exported the tertiary voltage U3 that the described supply voltage of the first electric pressure converter 11 conversion obtains;
The input of second voltage transducer 12 connects the negative electrode of diode D1, the anodic bonding power Vcc of diode D1, the 4th voltage U 4 that the described supply voltage of output output second voltage transducer 12 conversion of second voltage transducer 12 obtains;
The input of tertiary voltage transducer 13 connects the input of second voltage transducer 12, the 5th voltage U 5 that the described supply voltage of output output tertiary voltage transducer 13 conversion obtains;
The positive plate of the first capacitor C1 connects the negative electrode of diode D1, and negative plate connects earth terminal;
The first feeder ear of digital micro-mirror chip body 15 bodies is connected with described first output of the first electric pressure converter 11; The second feeder ear is connected with described second output of the first electric pressure converter 11; The 3rd feeder ear is connected with described the 3rd output of the first electric pressure converter 11; The 4th feeder ear is connected with the described output of second voltage transducer 12; The 5th feeder ear is connected with the described output of tertiary voltage transducer 13.
Wherein, the English full name of digital micro-mirror chip body 15 is Digital Micro mirror Device, referred to as DMD.
In summary it can be seen, when the projector of charged pool does not normally work, the first capacitor C1 is in charged state; When the projector unexpected power-off of charged pool not; because the input of second voltage transducer 12 is connected with the input of tertiary voltage transducer 13; and be all connected with the positive plate of the first capacitor C1; therefore; the electric weight of the first capacitor C1 storage continues power supply a period of time can to second voltage transducer 12 and tertiary voltage transducer 13 simultaneously; thereby the lower electricity time of delay control four voltage U 4 and the 5th voltage U 5; meet the sequential requirement of digital micro-mirror chip to electricity under different power voltage, protected digital micro-mirror chip not to be damaged.
Wherein, diode D1 can prevent that the electric weight of the first capacitor C1 storage from dischargeing by other loops.
The first electric pressure converter 11, second voltage transducer 12 and tertiary voltage transducer 13 can be all DC-DC transducer.
The voltage of power Vcc can be 5V, and the voltage of the first voltage U 1 can be 8.5V, and the voltage of second voltage U2 can be 16V, and the voltage of tertiary voltage U3 can be-10V, and the voltage of the 4th voltage U 4 can be 2.5V, and the voltage of the 5th voltage U 5 can be 1.9V.
On basis embodiment illustrated in fig. 3, referring to Fig. 4, the utility model discloses the schematic diagram of another kind of digital micro-mirror chip, from embodiment illustrated in fig. 3 different, the embodiment shown in Fig. 4 also comprises: the second capacitor C2;
The positive plate of the second capacitor C2 connects the negative electrode of diode D1, and negative plate connects earth terminal.
Preferably, the capacitance of the capacitance of the first capacitor C1 and the second capacitor C2 can be identical, can be all 100uF.
Wherein, increase the reason of the second capacitor C2 and the selection principle of capacitor, the relevant narration referring in the power supply circuits of digital micro-mirror chip repeats no more herein.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. power supply circuits for digital micro-mirror chip, is characterized in that, comprising: the first electric pressure converter, second voltage transducer, tertiary voltage transducer, diode and the first capacitor;
The input of described the first electric pressure converter connects power supply, the first output is exported the first voltage that described the first electric pressure converter conversion electric power voltage obtains, the second output is exported described the first electric pressure converter and is changed the second voltage that described supply voltage obtains, and the 3rd output is exported described the first electric pressure converter and changed the tertiary voltage that described supply voltage obtains;
The input of described second voltage transducer connects the negative electrode of described diode, power supply described in the anodic bonding of described diode, and the output of described second voltage transducer is exported described second voltage transducer and is changed the 4th voltage that described supply voltage obtains;
The input of described tertiary voltage transducer connects the input of described second voltage transducer, and output is exported described tertiary voltage transducer and changed the 5th voltage that described supply voltage obtains;
The positive plate of described the first capacitor connects the negative electrode of described diode, and negative plate connects earth terminal.
2. power supply circuits according to claim 1, is characterized in that, also comprise: the second capacitor;
The positive plate of described the second capacitor connects the negative electrode of described diode, and negative plate connects earth terminal.
3. power supply circuits according to claim 2, is characterized in that, the capacitance of described the first capacitor is identical with the capacitance of described the second capacitor.
4. a digital micro-mirror chip, is characterized in that, comprising: the power supply circuits of digital micro-mirror chip, and digital micro-mirror chip body;
The power supply circuits of described digital micro-mirror chip comprise: the first electric pressure converter, second voltage transducer, tertiary voltage transducer, diode and the first capacitor;
The input of described the first electric pressure converter connects power supply, the first output is exported the first voltage that described the first electric pressure converter conversion electric power voltage obtains, the second output is exported described the first electric pressure converter and is changed the second voltage that described supply voltage obtains, and the 3rd output is exported described the first electric pressure converter and changed the tertiary voltage that described supply voltage obtains;
The input of described second voltage transducer connects the negative electrode of described diode, power supply described in the anodic bonding of described diode, and the output of described second voltage transducer is exported described second voltage transducer and is changed the 4th voltage that described supply voltage obtains;
The input of described tertiary voltage transducer connects the input of described second voltage transducer, and output is exported described tertiary voltage transducer and changed the 5th voltage that described supply voltage obtains;
The positive plate of described the first capacitor connects the negative electrode of described diode, and negative plate connects earth terminal;
The first feeder ear of described digital micro-mirror chip body is connected with described first output of described the first electric pressure converter; The second feeder ear is connected with described second output of described the first electric pressure converter; The 3rd feeder ear is connected with described the 3rd output of described the first electric pressure converter; The 4th feeder ear is connected with the described output of described second voltage transducer; The 5th feeder ear is connected with the described output of described tertiary voltage transducer.
5. digital micro-mirror chip according to claim 4, is characterized in that, also comprises: the second capacitor;
The positive plate of described the second capacitor connects the negative electrode of described diode, and negative plate connects earth terminal.
6. digital micro-mirror chip according to claim 5, is characterized in that, the capacitance of described the first capacitor is identical with the capacitance of described the second capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604893.1U CN203522310U (en) | 2013-09-27 | 2013-09-27 | Power supply circuit of digital micromirror chip and digital micromirror chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604893.1U CN203522310U (en) | 2013-09-27 | 2013-09-27 | Power supply circuit of digital micromirror chip and digital micromirror chip |
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| Publication Number | Publication Date |
|---|---|
| CN203522310U true CN203522310U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320604893.1U Expired - Fee Related CN203522310U (en) | 2013-09-27 | 2013-09-27 | Power supply circuit of digital micromirror chip and digital micromirror chip |
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| CN (1) | CN203522310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475083A (en) * | 2013-09-27 | 2013-12-25 | 惠州市华阳多媒体电子有限公司 | Power supply circuit of digital micromirror chip and digital micromirror chip |
-
2013
- 2013-09-27 CN CN201320604893.1U patent/CN203522310U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475083A (en) * | 2013-09-27 | 2013-12-25 | 惠州市华阳多媒体电子有限公司 | Power supply circuit of digital micromirror chip and digital micromirror chip |
| CN103475083B (en) * | 2013-09-27 | 2015-08-26 | 惠州市华阳多媒体电子有限公司 | A kind of power supply circuits of digital micro-mirror chip and digital micro-mirror chip |
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| Date | Code | Title | Description |
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| 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: 20140402 Termination date: 20160927 |