CN208904655U - A kind of VR power supply unit - Google Patents
A kind of VR power supply unit Download PDFInfo
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- CN208904655U CN208904655U CN201821762677.9U CN201821762677U CN208904655U CN 208904655 U CN208904655 U CN 208904655U CN 201821762677 U CN201821762677 U CN 201821762677U CN 208904655 U CN208904655 U CN 208904655U
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Abstract
The utility model discloses a kind of VR power supply units, belong to technical field of electronic equipment, including multiple power supply ports and control chip, multiple power supply ports have been electrically connected Buck conversion circuit, multiple Buck conversion circuits are in parallel, and multiple Buck conversion circuits are electrically connected with control chip respectively；Buck conversion circuit includes the first metal-oxide-semiconductor, second metal-oxide-semiconductor, inductance and capacitor, first metal-oxide-semiconductor is electrically connected with the output end of control chip respectively with the grid of the second metal-oxide-semiconductor, the drain electrode of first metal-oxide-semiconductor is electrically connected with power supply port, the source electrode of first metal-oxide-semiconductor is electrically connected with the drain electrode of one end of inductance and the second metal-oxide-semiconductor respectively, the other end of inductance is electrically connected with capacitor, the sources connected in parallel of the other end of capacitor and the second metal-oxide-semiconductor ground connection, inductance and capacitor in each Buck conversion circuit are electrically connected with output port respectively, the design can realize multiple power supply port parallel operations, effectively improve output power.
Description
Technical field
The utility model belongs to technical field of electronic equipment, and in particular to a kind of VR power supply unit.
Background technique
On current electronic market, USB interface application is extremely extensive, though wherein high-power Type C interface can be provided
Application so has been put into, but does not popularize yet, common USB2.0 and USB3.0 interface are still mainstream, and USB2.0 structure can only
500mA electric current is provided, USB3.0 interface intelligently provides 900mA electric current.Many equipment, such as PC VR, if not applicable USB connects
Mouthful, then it can not be adapted to user equipment, if the electric current of demand is easily more than the upper limit of USB3.0 interface using USB interface.It is this
Predicament significantly limits the development of the powerful device of such adaptation computer, and multiple power supply ports cannot be directly used in parallel,
Otherwise it will cause power supply unit damage.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of VR power supply unit, it can be achieved that multiple power supply ports simultaneously
Alliance electricity, effectively improves output power.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of VR power supply unit, including multiple power supply ports and control chip, multiple power supply ports have been electrically connected drop
Pressure type translation circuit, multiple Buck conversion circuits are in parallel, multiple Buck conversion circuits respectively with the control
Chip electrical connection；The Buck conversion circuit includes the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, inductance and capacitor, first metal-oxide-semiconductor
It is electrically connected respectively with the output end of the control chip with the grid of second metal-oxide-semiconductor, the drain electrode of first metal-oxide-semiconductor and institute
Power supply port electrical connection is stated, the source electrode of first metal-oxide-semiconductor is electric with the drain electrode of one end of the inductance and second metal-oxide-semiconductor respectively
Connection, the other end of the inductance are electrically connected with the capacitor, and the source electrode of the other end of the capacitor and second metal-oxide-semiconductor is simultaneously
Connection, the inductance and the capacitor in each Buck conversion circuit are electrically connected with output port respectively.
Further, first metal-oxide-semiconductor and second metal-oxide-semiconductor are NMOS tube.
Further, multiple power supply ports are electrically connected with the input terminal of the control chip respectively.
Further, the control chip is STM32 controller, PLC controller or SOC chip.
Further, the power end of the control chip is electrically connected with working power.
Further, there are two the power supply port is set.
Further, there are two the Buck conversion circuit is set.
After above-mentioned technical proposal, the beneficial effects of the utility model are:
Due to the VR power supply unit of the utility model, including multiple power supply ports and control chip, multiple power supply ports difference electricity
Be connected with Buck conversion circuit, multiple Buck conversion circuits are in parallel, multiple Buck conversion circuits respectively with control chip
Electrical connection；Buck conversion circuit includes the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, inductance and capacitor, the first metal-oxide-semiconductor and the second metal-oxide-semiconductor
Grid respectively with control chip output end be electrically connected, the drain electrode of the first metal-oxide-semiconductor is electrically connected with power supply port, the first metal-oxide-semiconductor
Source electrode is electrically connected with the drain electrode of one end of inductance and the second metal-oxide-semiconductor respectively, and the other end of inductance is electrically connected with capacitor, capacitor it is another
The sources connected in parallel of one end and the second metal-oxide-semiconductor is grounded, and the inductance and capacitor in each Buck conversion circuit are electric with output port respectively
Connection, control chip can control the turn-on and turn-off of the first metal-oxide-semiconductor and the second metal-oxide-semiconductor respectively, realize multiple power supply ports to same
One output end power supply, and output power is the sum of multiple power supply port input powers, meets the power requirement of VR equipment.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model VR power supply unit.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of VR power supply unit, including multiple power supply ports and control chip, multiple power supply ports are electrically connected respectively
Be connected to Buck conversion circuit (Buck circuit), multiple Buck conversion circuits are in parallel, multiple Buck conversion circuits respectively with
Control chip U1 electrical connection.Buck conversion circuit include the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, inductance and capacitor, the first metal-oxide-semiconductor with
The grid G of second metal-oxide-semiconductor is electrically connected with the output end of control chip respectively, and the drain D of the first metal-oxide-semiconductor is electrically connected with power supply port,
The source S of first metal-oxide-semiconductor is electrically connected with the drain D of one end of inductance and the second metal-oxide-semiconductor respectively, the other end and the capacitor electricity of inductance
It connects, the source S earth of the other end of capacitor and the second metal-oxide-semiconductor, inductance and capacitor point in each Buck conversion circuit
It is not electrically connected with output port Vout.Based on Buck conversion circuit principle, the isolation to multiple power supply ports is realized, is made multiple
Power supply port can be the sum of each Buck conversion circuit output power with parallel operation, the output power of output port Vout, from
And it solves the problems, such as single power supply port and is unable to satisfy VR plant capacity requirement.
As shown in Figure 1, there are two preferred power supply port is set in present embodiment, there are two Buck conversion circuit is set, power supply
The Buck conversion circuit of mouth Vin1 connection includes the first metal-oxide-semiconductor H_MOS1, the second metal-oxide-semiconductor L_MOS1, inductance L1 and capacitor C1,
The Buck conversion circuit of power supply port Vin2 connection includes the first metal-oxide-semiconductor H_MOS2, the second metal-oxide-semiconductor L_MOS2, inductance L2 and electricity
Hold C2.Wherein first metal-oxide-semiconductor H_MOS1, H_MOS2 and second metal-oxide-semiconductor L_MOS1, L_MOS2 is NMOS tube.Control chip U1
Power end be electrically connected with working power VDD, control chip can be STM32 controller, PLC controller or SOC chip.
As shown in Figure 1, power supply port Vin1 and Vin2 are electrically connected with the input terminal a1 and a2 of control chip U1 respectively, core is controlled
Piece U1 can detect the voltage of power supply port Vin1 and Vin2, judge whether power supply port Vin1 and Vin2 have access, to automatically shut down
The Buck conversion circuit of power supply is not accessed.Simultaneously by the voltage of detecting power supply port Vin1 and Vin2, power supply port Vin1 is judged
The situation that power supply is accessed with Vin2, thus the power distribution between two Buck conversion circuits of dynamic regulation.For example, power supply port
Vin1 is the power supply of USB2.0 interface, when power supply port Vin2 is that USB3.0 interface is powered, by adjusting first metal-oxide-semiconductor H_MOS1, H_
MOS2 and second metal-oxide-semiconductor L_MOS1, L_MOS2, provides most electric current by second Buck conversion circuit.
Multiple buck converters that the VR power supply unit of the utility model is electrically connected with multiple power supply ports respectively by setting
Circuit realizes the isolation to multiple power supply ports, makes multiple power supply ports can be with parallel operation, the power for meeting VR equipment is wanted
It asks.
Although the foregoing describe specific embodiment of the present utility model, it should be appreciated by those skilled in the art,
Described embodiment is only a part of the embodiment of the utility model, and instead of all the embodiments, these are only to lift
Example explanation, the protection scope of the utility model is limited by described claims.Those skilled in the art is without departing substantially from this
It, can be to these embodiments under any creative labor of no process under the premise of the principle and essence of utility model
Various changes or modifications are made, but these change and modification each fall within the protection scope of the utility model.
Claims (7)
1. a kind of VR power supply unit, which is characterized in that including multiple power supply ports and control chip, multiple power supply ports are electric respectively
Be connected with Buck conversion circuit, multiple Buck conversion circuits are in parallel, multiple Buck conversion circuits respectively with
The control chip electrical connection；The Buck conversion circuit includes the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, inductance and capacitor, described
First metal-oxide-semiconductor is electrically connected with the output end of the control chip respectively with the grid of second metal-oxide-semiconductor, first metal-oxide-semiconductor
Drain electrode be electrically connected with the power supply port, the source electrode of first metal-oxide-semiconductor respectively with one end of the inductance and the 2nd MOS
The drain electrode of pipe is electrically connected, and the other end of the inductance is electrically connected with the capacitor, the other end of the capacitor and the 2nd MOS
The sources connected in parallel of pipe is grounded, and the inductance and the capacitor in each Buck conversion circuit are electrically connected with output port respectively
It connects.
2. VR power supply unit according to claim 1, which is characterized in that first metal-oxide-semiconductor and second metal-oxide-semiconductor are equal
For NMOS tube.
3. VR power supply unit according to claim 2, which is characterized in that multiple power supply ports respectively with the control core
The input terminal of piece is electrically connected.
4. VR power supply unit according to claim 3, which is characterized in that the control chip is STM32 controller, PLC
Controller or SOC chip.
5. VR power supply unit according to claim 4, which is characterized in that the power end of the control chip is electrically connected with work
Make power supply.
6. VR power supply unit according to claim 5, which is characterized in that there are two the power supply port is set.
7. VR power supply unit according to claim 6, which is characterized in that there are two the Buck conversion circuit is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762677.9U CN208904655U (en) | 2018-10-27 | 2018-10-27 | A kind of VR power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762677.9U CN208904655U (en) | 2018-10-27 | 2018-10-27 | A kind of VR power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208904655U true CN208904655U (en) | 2019-05-24 |
Family
ID=66577040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821762677.9U Active CN208904655U (en) | 2018-10-27 | 2018-10-27 | A kind of VR power supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208904655U (en) |
-
2018
- 2018-10-27 CN CN201821762677.9U patent/CN208904655U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201021 Address after: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronic office building) Patentee after: GoerTek Optical Technology Co.,Ltd. Address before: 261205 Shandong province Weifang Comprehensive Bonded Zone Yuqing East Street to South High Tech two Road East Weifang Comprehensive Bonded Zone aide light industrial product processing base 1, 3, 5 workshop Patentee before: Weifang Goertek Electronics Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221226 Address after: 266104 No. 500, Songling Road, Laoshan District, Qingdao, Shandong Patentee after: GOERTEK TECHNOLOGY Co.,Ltd. Address before: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronics office building) Patentee before: GoerTek Optical Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |