CN210225232U - Power conversion circuit and power system with same - Google Patents
Power conversion circuit and power system with same Download PDFInfo
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- CN210225232U CN210225232U CN201921108907.4U CN201921108907U CN210225232U CN 210225232 U CN210225232 U CN 210225232U CN 201921108907 U CN201921108907 U CN 201921108907U CN 210225232 U CN210225232 U CN 210225232U
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Abstract
The utility model relates to a power supply conversion circuit for convert input power supply into the required power of load and include: the input end of the driving power supply module is connected with an input power supply, and the output end of the driving power supply module is connected with a load and used for converting the input power supply into current and voltage required by the shear wave driving circuit and outputting the current and voltage to the load; the input end of the low-voltage power supply module is connected with the input power supply, and the output end of the low-voltage power supply module is connected with the load and used for converting the voltage of the input power supply into low voltage required by the circuit system and outputting the low voltage to the load; and the input end of the high-voltage power supply module is connected with the input power supply, and the output end of the high-voltage power supply module is connected with the load and used for converting the voltage of the input power supply into high voltage required by the emission excitation circuit and outputting the high voltage to the load. The utility model arranges three switching circuits on a circuit board, and integrates three power supplies to reduce the number of switching power supplies; system loss is reduced, and power supply efficiency is improved; the system volume is reduced; the application range of power supply of the power supply is enlarged; the system is convenient to miniaturize and integrate.
Description
Technical Field
The utility model relates to a medical treatment check out test set power supply technical field especially relates to a power conversion circuit and have power conversion circuit's electrical power generating system.
Background
Ultrasonography is observation of reflection of ultrasonic waves by a human body. Weak ultrasonic waves are irradiated to a body to image reflected waves of tissues. The current common ultrasonic detection method comprises the following steps: a-type ultrasonic detection, B-type ultrasonic detection, E-type ultrasonic detection, M-type ultrasonic detection and the like. When various ultrasonic detection devices are used for ultrasonic detection, a power supply is needed to supply power to the ultrasonic devices so as to drive the ultrasonic devices to complete the ultrasonic detection.
Currently, conventional techniques typically require three power supplies to drive the transient elastic ultrasound device including: a group of low-voltage power supplies supply power for the control circuit part; the high-voltage excitation power supply excites the transducer to generate ultrasonic waves with sufficient intensity; the drive power supply generates sufficient current to drive the circuit to operate to generate transient elastic shear waves. The three power supplies are independently arranged to respectively supply power to corresponding parts of the ultrasonic equipment.
In the above-mentioned conventional art, three power supplies set up independently, have increased the loss of system, have reduced the utilization ratio of power to the system is bulky, needs to occupy bigger space.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a power conversion circuit for solving the problems of increasing the loss of the system, reducing the utilization rate of the power supply, and occupying a larger space due to the large system size.
A power conversion circuit for converting an input power to a power required by a load, comprising: the input end of the driving power supply module is connected with an input power supply, and the output end of the driving power supply module is connected with a load and used for converting the input power supply into current and voltage required by the shear wave driving circuit and outputting the current and voltage to the load; the input end of the low-voltage power supply module is connected with the input power supply, and the output end of the low-voltage power supply module is connected with the load and used for converting the voltage of the input power supply into low voltage required by the circuit system and outputting the low voltage to the load; and the input end of the high-voltage power supply module is connected with the input power supply, and the output end of the high-voltage power supply module is connected with the load and used for converting the voltage of the input power supply into high voltage required by the emission excitation circuit and outputting the high voltage to the load.
In one embodiment, the input power source is a direct current power source; or the input power supply receives an alternating current power supply and converts the alternating current power supply into a direct current power supply.
In one embodiment, the driving power module includes: a positive voltage driving unit and/or a negative voltage driving unit; the input end of the positive voltage driving unit is connected with an input power supply, and the output end of the positive voltage driving unit is connected with a load and used for converting the input power supply into current and positive voltage required by the shear wave driving circuit and outputting the current and the positive voltage to the load; the input end of the negative voltage driving unit is connected with the input power supply, and the output end of the negative voltage driving unit is connected with the load and used for converting the input power supply into the current and the negative voltage required by the shear wave driving circuit and outputting the current and the negative voltage to the load.
In one embodiment, the low voltage power module includes: a positive low voltage cell and/or a negative low voltage cell; the input end of the positive low-voltage unit is connected with an input power supply, and the output end of the positive low-voltage unit is connected with a load and used for converting the voltage of the input power supply into positive low voltage required by the circuit system and outputting the positive low voltage to the load; the input end of the negative low-voltage unit is connected with the input power supply, and the output end of the negative low-voltage unit is connected with the load and used for converting the voltage of the input power supply into negative low voltage required by the circuit system and outputting the negative low voltage to the load.
In one embodiment, the positive voltage driving unit includes: a positive voltage conversion circuit and a filter circuit; the input end of the positive voltage conversion circuit is connected with the input power supply, the output end of the positive voltage conversion circuit is connected with the input end of the filter circuit, the positive voltage conversion circuit is used for converting the voltage of the input power supply into the voltage required by the rear-stage circuit, and the voltage is transmitted to the load.
In one embodiment, the negative voltage driving unit includes: a negative voltage conversion circuit and a filter circuit; the input end of the negative voltage conversion circuit is connected with the input power supply, the output end of the negative voltage conversion circuit is connected with the input end of the filter circuit, and the negative voltage conversion circuit is used for converting the voltage of the input power supply into the voltage required by the post-stage circuit and transmitting the negative voltage to the filter circuit.
In one embodiment, the high voltage power supply module includes: a boost circuit; the input end of the booster circuit is connected with the input power supply, the output end of the booster circuit is connected with the load, and the booster circuit is used for converting the voltage of the input power supply into the booster voltage required by the emission exciting circuit and transmitting the booster voltage to the load.
In one embodiment, the high voltage power supply module includes: a booster circuit and a voltage doubler circuit; the input end of the booster circuit is connected with the input power supply, the output end of the booster circuit is connected with the input end of the voltage doubling circuit, and the booster circuit is used for converting the voltage of the input power supply into a boosted voltage required by the emission excitation circuit and transmitting the boosted voltage to the voltage doubling circuit; the output end of the voltage doubling circuit is connected with the load and used for doubling the voltage of the boosted voltage to obtain high voltage and outputting the high voltage to the load.
In one embodiment, the output voltage range of the driving power supply module is plus or minus 5V-50V; the output voltage range of the low-voltage power supply module is plus or minus 0.5V-15V; the output voltage range of the high-voltage power supply module is plus or minus 5V-500V.
A power supply system comprises the power supply conversion circuit, and the power supply system is used for supplying power to a load.
An embodiment of the utility model provides a power conversion circuit includes: the device comprises a driving power supply module, a ground voltage module and a high voltage module. The input power supply is connected to convert the input power supply into a current-rising voltage, a low voltage and a high voltage respectively, and the current-rising voltage, the low voltage and the high voltage supply the corresponding loads. The utility model arranges three switching circuits on a circuit board, and integrates three power supplies to reduce the number of switching power supplies; system loss is reduced, and power supply efficiency is improved; the system volume is reduced; the application range of power supply of the power supply is enlarged; the system is convenient to miniaturize and integrate.
Drawings
Fig. 1 is a schematic structural diagram of a power conversion circuit according to an embodiment of the present invention.
Reference numerals: 100 is a driving power module, 200 is a low voltage power module, 300 is a high voltage power module, 400 is an input power, and 500 is a load.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model discloses power conversion circuit includes drive power supply module, low voltage power supply module and high voltage power supply module to set up three module on same circuit board, through an external input voltage, convert external voltage respectively for rising current voltage, low-voltage and high-voltage, supply power for corresponding load. The efficiency of the power is improved, the loss of the system is reduced, and the whole power is more miniaturized and convenient to integrate.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a power conversion circuit according to an embodiment of the present invention.
As shown in fig. 1, a power conversion circuit for converting an input power 400 into a power required by a load includes: the driving power supply module 100 has an input end connected to the input power supply 400 and an output end connected to a load, and is configured to convert the input power supply 400 into a current and a voltage required by the shear wave driving circuit and output the current and the voltage to the load; the input end of the low-voltage power supply module 200 is connected with the input power supply 400, and the output end of the low-voltage power supply module is connected with a load, and is used for converting the voltage of the input power supply 400 into low voltage required by a circuit system and outputting the low voltage to the load; the high voltage power module 300 has an input terminal connected to the input power 400 and an output terminal connected to a load, and is configured to convert the voltage of the input power 400 into a high voltage required by the transmission driving circuit and output the high voltage to the load.
In one embodiment, the input power source is a direct current power source; or the input power supply receives an alternating current power supply and converts the alternating current power supply into a direct current power supply.
Specifically, the driving power supply module 100 includes: a positive voltage driving unit and a negative voltage driving unit; the voltage may be either a positive voltage driving unit or a negative voltage driving unit. The input end of the positive voltage driving unit is connected with the input power supply 400, and the output end of the positive voltage driving unit is connected with a load, and is used for converting the input power supply 400 into current and positive voltage required by the shear wave driving circuit and outputting the current and the positive voltage to the load; the input end of the negative voltage driving unit is connected with the input power supply 400, and the output end of the negative voltage driving unit is connected with the load, and is used for converting the input power supply 400 into the current and the negative voltage required by the shear wave driving circuit and outputting the current and the negative voltage to the load. The positive voltage driving unit includes: a positive voltage conversion circuit and a filter circuit; the input end of the positive voltage conversion circuit is connected with the input power supply, the output end of the positive voltage conversion circuit is connected with the input end of the filter circuit, the positive voltage conversion circuit is used for converting the voltage of the input power supply into the voltage required by the rear-stage circuit, and the voltage is transmitted to the load. The negative voltage driving unit includes: a negative voltage conversion circuit and a filter circuit; the input end of the negative voltage conversion circuit is connected with the input power supply, the output end of the negative voltage conversion circuit is connected with the input end of the filter circuit, and the negative voltage conversion circuit is used for converting the voltage of the input power supply into the voltage required by the post-stage circuit and transmitting the negative voltage to the filter circuit.
In one embodiment, the high voltage power module 300 includes: a boost circuit; the input end of the boost circuit is connected with the input power supply 400, and the output end of the boost circuit is connected with the load, and the boost circuit is used for converting the voltage of the input power supply into the boost voltage required by the emission excitation circuit and transmitting the boost voltage to the load.
Specifically, the high voltage power module 300 includes: a booster circuit and a voltage doubler circuit; the input end of the booster circuit is connected with the input power supply 400, and the output end of the booster circuit is connected with the input end of the voltage doubling circuit, and the booster circuit is used for converting external voltage into boost voltage required by the emission excitation circuit and transmitting the boost voltage to the voltage doubling circuit; the output end of the voltage doubling circuit is connected with the load 500, and is used for doubling the voltage of the boosted voltage to obtain a high voltage and outputting the high voltage to the load 500.
Specifically, the low voltage power module 200 includes: a positive low voltage unit and a negative low voltage unit; the voltage may be either a positive low voltage cell or a negative low voltage cell. The input end of the positive low voltage unit is connected with the input power supply 400, and the output end of the positive low voltage unit is connected with the load 500, and is used for converting an external voltage into a positive low voltage required by the circuit system and outputting the positive low voltage to the load 500; the negative low voltage unit has an input terminal connected to the input power supply 400 and an output terminal connected to the load 500, and is configured to convert an external voltage into a negative low voltage required by the circuit system and output the negative low voltage to the load 500.
The utility model also discloses a power supply system includes any one of above-mentioned power conversion circuit, power supply system is used for supplying power for the load.
An embodiment of the utility model provides a power conversion circuit includes: the device comprises a driving power module, a low-voltage module and a high-voltage module. The input power supply is connected, and the input power supply is converted into driving voltage, low voltage and high voltage respectively to supply power to corresponding loads. The utility model arranges three switching circuits on a circuit board, and integrates three power supplies to reduce the number of switching power supplies; system loss is reduced, and power supply efficiency is improved; the system volume is reduced; the application range of power supply of the power supply is enlarged; the system is convenient to miniaturize and integrate.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A power conversion circuit for converting an input power to a power required by a load, comprising:
the input end of the driving power supply module is connected with an input power supply, and the output end of the driving power supply module is connected with a load and used for converting the input power supply into current and voltage required by the shear wave driving circuit and outputting the current and voltage to the load;
the input end of the low-voltage power supply module is connected with the input power supply, and the output end of the low-voltage power supply module is connected with the load and used for converting the voltage of the input power supply into low voltage required by the circuit system and outputting the low voltage to the load;
and the input end of the high-voltage power supply module is connected with the input power supply, and the output end of the high-voltage power supply module is connected with the load and used for converting the voltage of the input power supply into high voltage required by the emission excitation circuit and outputting the high voltage to the load.
2. The power conversion circuit of claim 1,
the input power supply is a direct current power supply; or
The input power supply receives an alternating current power supply and converts the alternating current power supply into a direct current power supply.
3. The power conversion circuit of claim 1,
the driving power supply module includes: a positive voltage driving unit and/or a negative voltage driving unit;
the input end of the positive voltage driving unit is connected with an input power supply, and the output end of the positive voltage driving unit is connected with a load and used for converting the input power supply into current and positive voltage required by the shear wave driving circuit and outputting the current and the positive voltage to the load;
the input end of the negative voltage driving unit is connected with the input power supply, and the output end of the negative voltage driving unit is connected with the load and used for converting the input power supply into the current and the negative voltage required by the shear wave driving circuit and outputting the current and the negative voltage to the load.
4. The power conversion circuit of claim 3,
the low voltage power supply module includes: a positive low voltage cell and/or a negative low voltage cell;
the input end of the positive low-voltage unit is connected with an input power supply, and the output end of the positive low-voltage unit is connected with a load and used for converting the voltage of the input power supply into positive low voltage required by the circuit system and outputting the positive low voltage to the load;
the input end of the negative low-voltage unit is connected with the input power supply, and the output end of the negative low-voltage unit is connected with the load and used for converting the voltage of the input power supply into negative low voltage required by the circuit system and outputting the negative low voltage to the load.
5. The power conversion circuit of claim 4,
the positive voltage driving unit includes: a positive voltage conversion circuit and a filter circuit;
the input end of the positive voltage conversion circuit is connected with the input power supply, the output end of the positive voltage conversion circuit is connected with the input end of the filter circuit, the positive voltage conversion circuit is used for converting the voltage of the input power supply into the voltage required by the rear-stage circuit, and the voltage is transmitted to the load.
6. The power conversion circuit of claim 5,
the negative voltage driving unit includes: a negative voltage conversion circuit and a filter circuit;
the input end of the negative voltage conversion circuit is connected with the input power supply, the output end of the negative voltage conversion circuit is connected with the input end of the filter circuit, and the negative voltage conversion circuit is used for converting the voltage of the input power supply into the voltage required by the post-stage circuit and transmitting the voltage to the filter circuit.
7. The power conversion circuit of claim 6,
the high voltage power supply module includes: a boost circuit;
the input end of the booster circuit is connected with the input power supply, the output end of the booster circuit is connected with the load, and the booster circuit is used for converting the voltage of the input power supply into the booster voltage required by the emission exciting circuit and transmitting the booster voltage to the load.
8. The power conversion circuit of claim 6,
the high voltage power supply module includes: a booster circuit and a voltage doubler circuit;
the input end of the booster circuit is connected with the input power supply, the output end of the booster circuit is connected with the input end of the voltage doubling circuit, and the booster circuit is used for converting the voltage of the input power supply into a boosted voltage required by the emission excitation circuit and transmitting the boosted voltage to the voltage doubling circuit;
the output end of the voltage doubling circuit is connected with the load and used for doubling the voltage of the boosted voltage to obtain high voltage and outputting the high voltage to the load.
9. The power conversion circuit of claim 1,
the output voltage range of the driving power supply module is plus or minus 5V-50V;
the output voltage range of the low-voltage power supply module is plus or minus 0.5V-15V;
the output voltage range of the high-voltage power supply module is plus or minus 5V-500V.
10. A power supply system comprising the power conversion circuit of any one of claims 1-9, the power supply system configured to supply power to a load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921108907.4U CN210225232U (en) | 2019-07-15 | 2019-07-15 | Power conversion circuit and power system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921108907.4U CN210225232U (en) | 2019-07-15 | 2019-07-15 | Power conversion circuit and power system with same |
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| Publication Number | Publication Date |
|---|---|
| CN210225232U true CN210225232U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921108907.4U Active CN210225232U (en) | 2019-07-15 | 2019-07-15 | Power conversion circuit and power system with same |
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| CN (1) | CN210225232U (en) |
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- 2019-07-15 CN CN201921108907.4U patent/CN210225232U/en active Active
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