WO2012171159A1

WO2012171159A1 - Power supply control method and device of negative grid-voltage power tube, power amplifier apparatus, and base station as the same

Info

Publication number: WO2012171159A1
Application number: PCT/CN2011/075654
Authority: WO
Inventors: 李松; 吴乔; 陈聂丰; 夏维洪
Original assignee: 华为技术有限公司
Priority date: 2011-06-13
Filing date: 2011-06-13
Publication date: 2012-12-20
Also published as: CN102265682A; CN102265682B

Abstract

A power supply control method and a device of negative grid-voltage power tube, a power amplifier apparatus, and a base station as the same are provided, the method includes: a first power supply circuit and a second power supply circuit are arranged between a grid of a negative grid-voltage power tube and a timing control unit for timing control to grid-voltage driven voltage and drain-voltage driven voltage; and the grid-voltage driven voltage outputted from the timing control unit supplies power to the grid of the negative grid-voltage power tube through the first power supply circuit, when the first power supply circuit works; the drain voltage outputted from the timing control unit supplies power to the grid of the negative grid-voltage power tube through the second power supply circuit, when the first power supply circuit dose not work while the second power supply circuit works.

Description

Power supply control method and device for negative gate voltage power tube, power amplifying device, base station

Technical field

Embodiments of the present invention relate to communication technologies, and in particular, to a power supply control method and apparatus for a negative gate voltage power tube, a power amplifying device, and a base station. Background technique

With the development of wireless communication systems, the rapid growth of data traffic, and the constant demand from suppliers to reduce costs, high efficiency and broadband have become the development trend of RF power amplifier circuits in base station equipment, with gallium nitride (GaN) and gallium arsenide. The negative gate voltage power tube represented by (GaAs) and the like has the advantages of high efficiency and large bandwidth, especially with the progress of the manufacturing process in recent years, and has received more and more attention. Since the negative gate voltage power transistor has a strict power supply timing, that is, the gate negative voltage must be earlier than the drain positive voltage in timing, the prior art is applied to the power supply path of the bias voltage (ie, gate voltage and drain voltage). A timing control unit that controls the timing of the gate and drain voltages (ie, the power-up sequence and the power-down sequence).

However, in the case of abnormal power failure, the above timing control unit cannot work normally, so that the power supply timing of the negative gate voltage power tube is uncontrollable, and if the discharge speed of the gate voltage is faster than the discharge speed of the drain pressure, a leakage voltage occurs. There is also, but the gate voltage is no longer present, which may cause the negative gate voltage power tube to be burned, thereby reducing the reliability of the negative gate voltage power tube. Summary of the invention

Embodiments of the present invention provide a power supply control method and apparatus for a negative gate voltage power tube, a power amplifying device, and a base station, to avoid the problem that a negative gate voltage power tube is burned due to uncontrollable power supply timing.

One aspect of the present invention provides a power supply control method for a negative gate voltage power tube, the negative gate voltage work A first power supply path and a second power supply path are disposed between the gate of the rate tube and the timing control unit for timing control of the gate voltage driving voltage and the drain voltage, the method comprising:

And if the first power supply path is operated, supplying the gate voltage driving voltage output by the timing control unit to the gate of the negative gate voltage power tube through the first power supply path;

If the first power supply path is not working, and the second power supply path is working, the drain voltage output by the timing control unit is passed through the second power supply path to the gate of the negative gate voltage power tube Power is supplied.

Another aspect of the present invention provides a power supply control device for a negative gate voltage power tube, wherein a gate of the negative gate voltage power tube is disposed between a timing control unit for timing control of a gate voltage driving voltage and a drain voltage a first power supply path and a second power supply path, wherein

The first power supply path is configured to supply the gate voltage driving voltage output by the timing control unit to a gate of the negative gate voltage power tube;

The second power supply path is configured to supply the drain voltage output by the timing control unit to a gate of the negative gate voltage power tube;

The device includes:

a gate control circuit, configured to determine, when the first power supply path is in operation, the gate voltage driving voltage output by the timing control unit to pass through the first power supply path to a gate of the negative gate voltage power tube Power supply, determining that the first power supply path is inactive and the second power supply path is operating, the drain voltage output by the timing control unit is passed through the second power supply path to a gate of the negative gate voltage power tube Power is supplied.

Another aspect of the present invention provides a power amplifying apparatus including a negative gate voltage power tube, a timing control unit, and a power supply control device for the negative gate voltage power tube.

Another aspect of the present invention provides a base station including the above power amplifying device.

It can be seen from the above technical solution that in the case of abnormal power failure, if the discharge speed of the gate voltage is faster than the discharge speed of the drain voltage, the leakage voltage still exists, but the gate voltage is no longer present, and the embodiment can set the timing. The leakage voltage outputted by the control unit passes through the second power supply path to the gate of the negative gate voltage power tube The power supply is performed, that is, as long as the leakage voltage exists, the gate voltage is always present, and the negative gate voltage power tube can be effectively prevented from being burnt, thereby improving the reliability of the negative gate voltage power tube. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic flow chart of a power supply control method for a negative gate voltage power tube according to an embodiment of the present invention;

2 is a schematic flow chart of a power supply control method for a negative gate voltage power tube according to another embodiment of the present invention;

3 is a schematic flow chart of a power supply control method for a negative gate voltage power tube according to another embodiment of the present invention;

4 is a schematic flow chart of a power supply control method for a negative gate voltage power tube according to another embodiment of the present invention;

FIG. 5 is a schematic diagram of circuit implementation of the embodiment corresponding to FIG. 4; FIG.

6 is a schematic structural view of a power supply control device for a negative gate voltage power tube according to another embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a power supply control device for a negative gate voltage power tube according to another embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a power supply control device for a negative gate voltage power tube according to another embodiment of the present invention; FIG.

FIG. 9 is a schematic structural diagram of a power supply control device for a negative gate voltage power tube according to another embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

1 is a schematic flow chart of a power supply control method for a negative gate voltage power tube according to an embodiment of the present invention, wherein a gate of a negative gate voltage power tube and a timing control for timing control of a gate voltage driving voltage and a drain voltage are provided. A first power supply path and a second power supply path are disposed between the units. As shown in FIG. 1, the power supply control method of the negative gate voltage power tube of this embodiment may include:

101. When the first power supply path is operated, supplying the gate voltage driving voltage output by the timing control unit to the gate of the negative gate voltage power tube through the first power supply path;

102. If the first power supply path does not operate and the second power supply path operates, the drain voltage output by the timing control unit is supplied to the gate of the negative gate voltage power tube through the second power supply path.

Wherein, the leakage voltage may be further supplied to a drain of the negative gate voltage power tube; and the gate voltage driving voltage and the drain voltage are outputted by a timing control unit.

In this embodiment, in the case of abnormal power-off, if the discharge speed of the gate voltage is faster than the discharge speed of the drain pressure, there is a leakage voltage still present, but the gate voltage is no longer present, and the embodiment can control the timing. The leakage voltage of the output of the unit is supplied to the gate of the negative gate voltage power tube through the second power supply path, that is, as long as the leakage voltage exists, the gate voltage is always present, and the negative gate voltage power tube can be effectively prevented from being burnt, thereby Improve the reliability of the negative gate voltage power tube.

The operation of the first power supply path and the operation of the second power supply path may be various. The following describes the technical solutions of the present invention in detail by taking three cases as an example.

2 is a schematic flowchart of a power supply control method for a negative gate voltage power tube according to another embodiment of the present invention. In this embodiment, a first power supply path operates to input a gate voltage driving power for the first power supply path. The second power supply path operates to input a drain voltage to the second power supply path. As shown in FIG. 2, the power supply control method of the negative gate voltage power tube of this embodiment may specifically include:

201, if the gate voltage driving voltage is input, converting the gate voltage driving voltage into a first gate voltage, and outputting the first gate voltage to a gate of the negative gate voltage power tube;

202. If the gate voltage driving voltage is not input, and the drain voltage is input, the drain voltage is converted into the second gate voltage, and the second gate voltage is outputted to the gate of the negative gate voltage power tube.

In the above 201, if the gate voltage driving voltage is input, indicating that the current state is normal, the gate voltage driving voltage is converted into the first gate voltage, and the first gate voltage is output to provide the negative gate voltage power. The gate of the tube.

In the above 202, if the gate voltage driving voltage is not input and the drain voltage is input, it indicates that the current state is abnormal. For example, if the abnormal power is turned off, the leakage voltage is converted into the second gate voltage, and the second gate is output. Pressed to supply the gate of the above negative gate voltage power tube.

It should be noted that the conversion in this embodiment is not limited to performing real-time conversion on a numerical value, and functional virtual conversion is also possible. If the value of the gate driving voltage is not equal to the value of the first gate voltage, the gate driving voltage is numerically converted to be converted into the first gate voltage, for example: converting the gate driving voltage of +5V to - 5V gate voltage; if the value of the gate driving voltage is equal to the value of the first gate voltage, a functional virtual conversion of the gate driving voltage is performed to convert to the first gate voltage, for example: driving a gate of -5V The voltage is converted to a gate voltage of -5V. In general, all of the leakage voltages are numerically true conversions, such as: Converting a +50V drain voltage to a -5V gate voltage.

In the embodiment, in the case of abnormal power failure, if the discharge speed of the gate voltage is faster than the discharge speed of the drain pressure, the leakage pressure may still exist, but the gate voltage is no longer present, and the above-mentioned leakage may be used in the embodiment of the present invention. The voltage is converted into the second gate voltage, and the second gate voltage is outputted to the gate of the negative gate voltage power tube. That is, as long as the leakage voltage exists, the gate voltage is always present, and the negative gate voltage power tube can be effectively avoided. Burned, thereby increasing the reliability of the negative gate voltage power tube.

FIG. 3 is a schematic flowchart of a power supply control method for a negative gate voltage power tube according to another embodiment of the present invention. In this embodiment, the method further includes: converting a gate voltage driving voltage into a first gate voltage, And/or converting the drain voltage into a second gate voltage; the first power supply path operates to have the first gate voltage in the first power supply path, and the second power supply path operates to have the second gate voltage in the second power supply path . As shown in FIG. 3, the power supply control method of the negative gate voltage power tube of this embodiment may specifically include:

301, if the first gate voltage is present, outputting the first gate voltage to a gate of the negative gate voltage power tube;

302. If the first gate voltage is absent and the second gate voltage is present, outputting the second gate voltage to a gate of the negative gate voltage power tube.

In the above 301, if there is a first gate voltage, indicating that it is normal at this time, the first gate voltage is outputted to be supplied to the gate of the negative gate voltage power tube.

In the above 302, if there is no first gate voltage and there is a second gate voltage, indicating that the current gate is abnormal, for example: abnormal power-off, the second gate voltage is output to provide the negative gate voltage power. The gate of the tube.

In this embodiment, in the case of abnormal power failure, if the discharge speed of the gate voltage is faster than the discharge speed of the drain pressure, the leakage pressure may still exist, but the gate voltage is no longer present, and the embodiment of the present invention may output the leakage. The second gate of the voltage conversion is pressed to the gate of the negative gate voltage power tube, that is, as long as the leakage voltage exists, the gate voltage is always present, which can effectively prevent the negative gate voltage power tube from being burnt, thereby improving the negative gate The reliability of the pressure power tube.

4 is a schematic flow chart of a power supply control method for a negative gate voltage power tube according to another embodiment of the present invention. In this embodiment, the method further includes: converting a drain voltage to the gate voltage driving voltage The gate voltage conversion voltage is equal in value; the first power supply path operates to input a gate voltage driving voltage to the first power supply path, and the second power supply path operates to have the gate voltage conversion voltage in the second power supply path. As shown in FIG. 4, the power supply control method of the negative gate voltage power tube of the embodiment may specifically include:

401. If a gate voltage driving voltage is input, outputting the gate voltage driving voltage;

402. If the gate voltage driving voltage is not input, and the gate voltage conversion voltage is present, outputting the gate voltage conversion voltage;

403. Convert the output gate voltage driving voltage or the gate voltage conversion voltage into a gate voltage, and output the gate to the gate of the negative gate voltage power tube.

In the above 401, if the gate voltage driving voltage is input, indicating that the current state is normal, the gate voltage driving voltage is output, the output gate voltage driving voltage is converted into a gate voltage, and outputted to be supplied to the negative gate. The gate of the voltage power tube.

In the above 402, if the gate voltage driving voltage is not input and the gate voltage switching voltage is present, it indicates that the current state is abnormal. For example, if the abnormal power is turned off, the gate voltage conversion voltage is output, and the gate voltage is converted. Converted to gate voltage and output to provide the gate of the above negative gate voltage power tube.

It should be noted that the conversion in this embodiment is not limited to performing real-time conversion on a numerical value, and functional virtual conversion is also possible. If the value of the gate driving voltage is not equal to the value of the first gate voltage, the gate driving voltage is numerically converted to be converted into the first gate voltage, for example: converting the gate driving voltage of +5V to - 5V gate voltage; if the value of the gate driving voltage is equal to the value of the first gate voltage, a functional virtual conversion of the gate driving voltage is performed to convert to the first gate voltage, for example: driving a gate of -5V The voltage is converted to a gate voltage of -5V. In general, the real-time conversion of the leakage voltage is performed, for example: converting the +50V drain voltage to +5V gate switching voltage, and converting the +5V gate switching voltage to -5V gate voltage .

In order to make the method provided by this embodiment more clear, a specific circuit structure will be taken as an example, as shown in FIG.

If the switching circuit (the value of the on-voltage of the switching circuit is the value of the gate voltage driving voltage VgO), the gate voltage driving voltage VgO is input, indicating that the current state is normal, and the switching circuit outputs the gate voltage driving Dynamic voltage Vg0. If the value of the gate driving voltage VgO (for example, +5V) is not equal to the value of the gate voltage Vg (-5V), the switching circuit in this embodiment may further be connected to a DC voltage converter to output the gate of the switching circuit. The voltage driving voltage Vg0 is converted into a gate voltage Vg, and the gate voltage Vg is outputted to the gate of the negative gate voltage power tube.

If the switching circuit does not input the gate voltage driving voltage VgO, and the input DC voltage converter converts the input drain voltage Vd into a gate voltage switching voltage Vg1 equal to the value of the gate voltage driving voltage VgO, this indicates an abnormality at this time. The switching circuit outputs the above-described gate voltage conversion voltage Vg1 because there is no gate voltage driving voltage VgO input. If the value of the gate voltage switching voltage Vg1 (for example, +5V) is not equal to the value of the gate voltage Vg (-5V), the switching circuit in this embodiment may further be connected to a DC voltage converter to output the gate of the switching circuit. The voltage conversion voltage Vg1 is converted into a gate voltage Vg, and the gate voltage Vg is outputted to the gate of the above negative gate voltage power transistor.

In this embodiment, in the case of abnormal power failure, if the discharge speed of the gate voltage is faster than the discharge speed of the drain pressure, the leakage pressure may still exist, but the gate voltage is no longer present, and the embodiment of the present invention may output the leakage. Pressing the converted gate voltage conversion voltage, and converting the output gate voltage driving voltage or the gate voltage conversion voltage into a gate voltage, and outputting to the gate of the negative gate voltage power tube, that is, as long as the leakage voltage exists, The gate voltage is always present, which can effectively avoid the negative gate voltage power tube being burned, thereby improving the reliability of the negative gate voltage power tube.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because in accordance with the present invention, certain steps may be performed in other sequences or concurrently. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

6 is a schematic structural diagram of a power supply control device for a negative gate voltage power tube according to another embodiment of the present invention, wherein a gate of a negative gate voltage power tube is used for timing control of a gate voltage driving voltage and a drain voltage A first power supply path and a second power supply path are disposed between the prepared timing control units. The second power supply path is configured to supply power to the gate of the negative gate voltage power tube by supplying the drain voltage output by the timing control unit. As shown in FIG. 6, the power supply control device of the negative gate voltage power tube of the present embodiment may include a gate control circuit 61 for determining the gate voltage driving voltage output by the timing control unit when the first power supply path is operated. Supplying power to the gate of the negative gate voltage power tube through the first power supply path, determining that the first power supply path is not operating and the second power supply path is operating, and transmitting the drain voltage output by the timing control unit to the second The power supply path supplies power to the gate of the negative gate voltage power tube.

The power supply control device in this embodiment may further include an input unit and an output unit. The input unit is connected to the timing control unit, and is shared by the first power supply path and the second power supply path for inputting the gate voltage driving voltage and/or the leakage voltage; the output unit is the first power supply path and the above The second power supply path is shared and used to output a voltage to the gate of the negative gate voltage power tube. interface.

In this embodiment, in the case of abnormal power failure, if the discharge speed of the gate voltage is faster than the discharge speed of the drain voltage, there is a leakage voltage still existing, but the gate voltage is no longer present, and the gate control circuit can control the timing. The leakage voltage of the output of the unit is supplied to the gate of the negative gate voltage power tube through the second power supply path, that is, as long as the leakage voltage exists, the gate voltage is always present, and the negative gate voltage power tube can be effectively prevented from being burnt, thereby Improve the reliability of the negative gate voltage power tube.

There are a plurality of cases in which the first power supply path operates and the second power supply path operates. The gating control circuit 61 of the present invention will be described in detail below by taking three cases as an example.

FIG. 7 is a schematic structural diagram of a power supply control device for a negative gate voltage power tube according to another embodiment of the present invention. In this embodiment, a first power supply path operates to input a gate voltage driving power for the first power supply path. The second power supply path operates to input a drain voltage to the second power supply path. As shown in FIG. 7, the power supply control device of the negative gate voltage power tube of the embodiment may further include an input unit 71 and an output unit 72. The input unit 71 is connected to the timing control unit, and is shared by the first power supply path and the second power supply path for inputting the gate voltage driving voltage and/or the leakage voltage; and the output unit 72 is the first power supply path. The second power supply path is shared with the second power supply path for outputting a voltage to the gate of the negative gate voltage power tube.

Specifically, the gate control circuit 61 in this embodiment may specifically include a gate voltage conversion unit 73 for determining the gate voltage driving voltage when the first power supply path is operated by determining the input gate voltage driving voltage of the input unit 71. The first gate voltage is output to the output unit 72. The first power supply path is determined to be inoperative by determining that the input voltage is not input by the input unit 71, and the second power supply path is determined to be determined by determining the input voltage of the input unit 71. The above-described drain voltage is converted into a second gate voltage and output to the output unit 72. Correspondingly, the output unit 72 may specifically output the first gate voltage obtained by the gate voltage conversion unit 73 or the second gate voltage to the gate of the negative gate voltage power tube.

In this embodiment, in the case of abnormal power failure, if the discharge speed of the gate voltage is faster than the discharge speed of the drain pressure, there is a leakage voltage still present, but the gate voltage is no longer present, and the gate voltage conversion unit can The voltage is converted into the second gate voltage, and the second gate voltage is outputted to the gate of the negative gate voltage power tube. That is, as long as the leakage voltage exists, the gate voltage is always present, and the negative gate voltage power tube can be effectively avoided. Burned, thereby increasing the reliability of the negative gate voltage power tube.

FIG. 8 is a schematic structural diagram of a power supply control device for a negative gate voltage power tube according to another embodiment of the present invention. In this embodiment, the first power supply path operates to have the first gate voltage in the first power supply path, and second The power supply path operates to have the second gate voltage present in the second power supply path. As shown in FIG. 8, the power supply control device of the negative gate voltage power tube of the present embodiment may further include an input unit 81 and an output unit 82. The input unit 81 is connected to the timing control unit, and is shared by the first power supply path and the second power supply path for inputting the gate voltage driving voltage and/or the leakage voltage; and the output unit 82 is the first power supply path. The second power supply path is shared with the second power supply path for outputting a voltage to the gate of the negative gate voltage power tube. Specifically, the gate control circuit 61 in this embodiment may specifically include a gate voltage conversion unit 83 and a gate unit 84. Wherein, the gate voltage converting unit 83 is configured to convert the gate voltage driving voltage into a first gate voltage, and/or convert the drain voltage into a second gate voltage; the gate unit 84 is configured to determine that the first gate voltage exists Determining that the first power supply path operates, outputting the first gate voltage to the output unit 82; determining that the first power supply path is inoperative by determining that the first gate voltage is absent, and determining that the second gate voltage is determined by determining that the second power supply is present When the two power supply paths are operated, the second gate is outputted to the output unit 82. Correspondingly, the output unit 82 can specifically output the first gate voltage or the second gate voltage to the gate of the negative gate voltage power tube.

In this embodiment, in the case of abnormal power failure, if the discharge speed of the gate voltage is faster than the discharge speed of the drain pressure, there is a leakage voltage still present, but the gate voltage is no longer present, and the gate voltage conversion unit can The voltage is converted into a second gate voltage, and the gate unit outputs the second gate voltage to the gate of the negative gate voltage power tube, that is, as long as the leakage voltage exists, the gate voltage is always present, and the negative voltage can be effectively avoided. The gate voltage power tube is burned, thereby improving the reliability of the negative gate voltage power tube.

FIG. 9 is a schematic structural diagram of a power supply control device for a negative gate voltage power tube according to another embodiment of the present invention. In this embodiment, the first power supply path operates to have the first gate voltage in the first power supply path, and second The power supply path operates to have the second gate voltage present in the second power supply path. As shown in FIG. 9, the power supply control device of the negative gate voltage power tube of the present embodiment may further include an input unit 91 and an output unit 92. The input unit 91 is connected to the timing control unit, and is shared by the first power supply path and the second power supply path for inputting the gate voltage driving voltage and/or the drain voltage; and the output unit 92 is the first power supply path. The second power supply path is shared with the second power supply path for outputting a voltage to the gate of the negative gate voltage power tube.

Specifically, the gate control circuit 61 in this embodiment may specifically include a conversion unit 93, a control unit 94, and a gate voltage supply unit 95. The conversion unit 93 is configured to convert the leakage voltage into a gate voltage conversion voltage equal to the value of the gate voltage driving voltage; and the control unit 94 is configured to determine that the first power supply path works by determining the input gate voltage of the input unit 91. When the gate voltage driving voltage is outputted to the gate voltage supply unit 95; by determining that the input unit 91 does not input the gate voltage driving voltage The first power supply path is inactive, and when the second power supply path is determined to be determined by the presence of the gate voltage switching voltage, the gate voltage conversion voltage is outputted to the gate voltage supply unit 95; the gate voltage supply unit 95 is configured to apply the gate voltage The driving voltage or the above-described gate voltage conversion voltage is converted into a gate voltage, and is output to the output unit 92. Correspondingly, the output unit 92 can specifically output the above gate voltage to the gate of the negative gate voltage power tube.

Specifically, the control unit 94 and the gate voltage supply unit 95 in this embodiment may be specifically implemented by a switch circuit.

In this embodiment, in the case of abnormal power failure, if the discharge speed of the gate voltage is faster than the discharge speed of the drain pressure, there is a leakage voltage still existing, but the gate voltage is no longer present, and the control unit can output the conversion by the conversion unit. a gate voltage conversion voltage, and the gate voltage driving voltage output by the control unit or the gate voltage conversion voltage is converted into a gate voltage by a gate voltage supply unit, and is output to a gate of the negative gate voltage power tube, that is, As long as the leakage voltage exists, the gate voltage is always present, which can effectively prevent the negative gate voltage power tube from being burnt, thereby improving the reliability of the negative gate voltage power tube.

The power amplifying device according to another embodiment of the present invention may include a negative gate voltage power tube, a timing control unit, and a power supply control device for the negative gate voltage power tube provided by the embodiment corresponding to any of the above-mentioned FIGS. 6 to 9.

A base station according to another embodiment of the present invention may include the above power amplifying device.

The method or device provided in the embodiments of the present invention can also be applied to other communication fields, such as radar or satellite communication, which may not be limited herein.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another The system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form. The components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software function unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program code. .

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A power supply control method for a negative gate voltage power tube, characterized in that: a gate of the negative gate voltage power tube and a timing control unit for timing control of a gate voltage driving voltage and a drain voltage are provided a power supply path and a second power supply path, the method comprising:

The method according to claim 1, wherein the first power supply path operates to input a gate voltage driving voltage to the first power supply path, and the second power supply path operates as the second power supply path The leakage pressure is input, and the method specifically includes:

If the gate voltage driving voltage is input, converting the gate voltage driving voltage to a first gate voltage, and outputting the first gate voltage to a gate of the negative gate voltage power tube;

If the gate voltage driving voltage is not input, and the drain voltage is input, the drain voltage is converted into a second gate voltage, and the second gate voltage is outputted to the gate of the negative gate voltage power transistor.

3. The method according to claim 1, wherein the method further comprises: converting a gate voltage driving voltage into a first gate voltage, and/or converting a drain voltage into a second gate voltage; The power supply path operates to have the first gate voltage in the first power supply path, and the second power supply path operates to have the second gate voltage in the second power supply path, where the method specifically includes:

If the first gate voltage is present, outputting the first gate voltage to a gate of the negative gate voltage power tube; if the first gate voltage is not present, and the second gate voltage is present, outputting The second gate is pressed to the gate of the negative gate voltage power transistor.

4. The method according to claim 1, wherein the method further comprises: converting a drain voltage into a gate voltage conversion voltage equal to a value of the gate voltage driving voltage; the first power supply path operates as The first power supply path inputs a gate voltage driving voltage, and the second power supply path operates as a The gate voltage conversion voltage is present in the second power supply path, and the method specifically includes: if the gate voltage driving voltage is input, outputting the gate voltage driving voltage;

If the gate voltage driving voltage is not input, and a gate voltage conversion voltage is present, the gate voltage conversion voltage is output;

The output gate voltage driving voltage or the gate voltage conversion voltage is converted into a gate voltage, and is output to a gate of the negative gate voltage power transistor.

5. A power supply control device for a negative gate voltage power tube, characterized in that: a gate of the negative gate voltage power tube and a timing control unit for timing control of a gate voltage driving voltage and a drain voltage are provided. a power supply path and a second power supply path, wherein

The device includes:

The device according to claim 5, further comprising: an input unit, connected to the timing control unit, shared by the first power supply path and the second power supply path, Inputting the gate voltage driving voltage and/or the drain voltage;

An output unit, shared by the first power supply path and the second power supply path, for outputting a voltage to a gate of the negative gate voltage power tube;

The gating control circuit includes:

Gate voltage conversion unit, When the first power supply path is in operation, converting the gate voltage driving voltage into a first gate voltage, outputting to the input and not working, and determining that the second power supply path is working by determining the input unit input leakage voltage, The drain voltage is converted into a second gate voltage and output to the output unit;

The output unit is specifically configured to output the first gate voltage or the second gate voltage obtained by the conversion of the gate voltage conversion unit to a gate of the negative gate voltage power tube.

The gating control circuit includes:

a gate voltage conversion unit for converting the gate voltage driving voltage into a first gate voltage, and/or converting the drain voltage into a second gate voltage;

a gate unit, configured to output the first gate voltage to the output unit when determining that the first power supply path is determined by the presence of the first gate voltage; determining the first by determining that the first gate voltage is absent a power supply path is not working, and determining that the second power supply path operates by determining that the second gate voltage is present, outputting the second gate voltage to the output unit;

The output unit is specifically configured to output the first gate voltage or the second gate voltage to a gate of the negative gate voltage power tube.

The device according to claim 5, wherein the device further comprises: an input unit, connected to the timing control unit, shared by the first power supply path and the second power supply path, Inputting the gate voltage driving voltage and/or the drain voltage;

The gate control circuit includes a conversion unit, a control unit, and a gate voltage supply unit. The conversion unit is configured to convert the drain voltage into a gate voltage conversion voltage equal to a value of the gate voltage driving voltage; when the first power supply path is in operation, output the gate voltage driving voltage to the gate voltage supply Determining that the first power supply path is inoperative by determining that the input unit does not input a gate voltage driving voltage, and outputting the gate voltage conversion by determining that the second power supply path is operated by determining the presence of the gate voltage switching voltage a voltage to the gate voltage supply unit;

The gate voltage supply unit is configured to convert the gate voltage driving voltage or the gate voltage conversion voltage into a gate voltage, and output the same to the output unit;

The output unit is specifically configured to output the gate voltage to a gate of the negative gate voltage power tube.

The apparatus according to claim 8, wherein said control unit and said gate voltage supply unit are implemented by a switching circuit.

A power amplifying apparatus, comprising: a negative gate voltage power tube, a timing control unit, and a power supply control device for a negative gate voltage power tube according to any one of claims 5 to 9.

A base station, comprising the power amplifying device of claim 10.