CN202512463U - Power supply control circuit, base station and repeater of power amplification tube with negative grid pressure - Google Patents
Power supply control circuit, base station and repeater of power amplification tube with negative grid pressure Download PDFInfo
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- CN202512463U CN202512463U CN2012201041293U CN201220104129U CN202512463U CN 202512463 U CN202512463 U CN 202512463U CN 2012201041293 U CN2012201041293 U CN 2012201041293U CN 201220104129 U CN201220104129 U CN 201220104129U CN 202512463 U CN202512463 U CN 202512463U
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- power tube
- negative pressure
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Abstract
The embodiment of the utility model discloses a power supply control circuit of a power amplification tube with negative grid pressure. One end of the power supply control circuit is connected with the power amplification tube, the other end of the power supply control circuit is connected with an input power supply of the power amplification tube, a grid pressure control chip is used for supplying power for the grid electrode of the power amplification tube, a drain pressure control chip is used for supplying power for the drain electrode of the power amplification tube, a chip control unit controls the power supply and discharge sequence of the two chips, so that the grid electrode and the drain electrode of the power amplification tube are electrified and discharged in sequence. The power supply control circuit replaces manual work, thus having the characteristics of wide applicability and high reliability, and effectively protecting the power amplification tube. In addition, sequence control is automatically completed in the power supply control circuit, therefore the electrification and power-off of the power amplification tube can be realized only by one input power supply. The embodiment of the utility model further discloses a base station and a repeater, the power amplification tube with negative grid pressure in the base station and the repeater has corresponding advantages after the power supply control circuit is adopted.
Description
Technical field
The utility model relates to the power amplifier technical field, power-supplying circuit, base station and repeater that particularly a kind of grid voltage is the power tube of negative pressure.
Background technology
GaN is the semi-conductive representative of the third generation; Because its energy gap is wide; So the microwave power amplifier (being called for short the GaN power tube) by the GaN material has advantages such as frequency of operation height, efficient is high, bandwidth is wide; But now the grid step voltage of GaN power tube all is a negative pressure, and the switching sequence of grid step voltage and drain voltage has strict requirement, and power supply has problem very easily to cause the damage of power tube.The correct powering order of GaN power tube is: 1. Vgs=0V (gate), Vds=0V (drain); 2. Vgs reaches negative pressure value earlier; 3. Vds reaches the drain electrode required voltage again; 4. Vgs is adjusted to the magnitude of voltage that needs stationary stream.The pass electricity order of GaN power tube is: 1. turn off radiofrequency signal; 2. Vds is reduced to 0V earlier; 3. Vgs arrives 0V again.Great majority are to adopt two switches of two power supplys manually to remove control gate step voltage and drain voltage respectively at present, and the shortcoming of this manual control mode is: 1. manual operation efficient is low, can only be used for the laboratory debugging, are not suitable for production; 2. manual operation accuracy is difficult to guarantee, in case two switching sequence mistakes just might cause power tube to damage.
The utility model content
The purpose of the utility model embodiment is the defective that solves above power-supplying circuit, proposes a kind of wide adaptability, the power tube power-supplying circuit that reliability is high, and the base station and the repeater of adopting this power-supplying circuit.
The utility model embodiment grid voltage is the power-supplying circuit of the power tube of negative pressure, comprises the grid voltage control chip, leaks pressure-controlled chip and chip controls unit,
Said chip controls unit receives power tube and closes the electricity instruction and send the chip controls unit that closes electric signal to said leakage pressure-controlled chip, grid voltage control chip successively for receiving power on instruction and send power on signal, send power on signal, send the pressure regulation signal to said grid voltage control chip to said leakage pressure-controlled chip to said grid voltage control chip successively of power tube;
Said grid voltage control chip is for receiving said power on signal and exporting negative pressure to the grid of power tube; Receive said pressure regulation signal and the negative pressure of output is adjusted to the voltage of the required stationary stream of power tube, receive said pass electric signal and the negative pressure of output is reduced to 0 grid voltage control chip;
Said leakage pressure-controlled chip is for receiving said power on signal and to the drain electrode output voltage of power tube, receives said pass electric signal and the voltage of output is reduced to 0 leakage pressure-controlled chip.
Preferably,
Said grid voltage control chip is for to the grid of power tube output negative pressure and return grid to said chip controls unit and power on and accomplish the grid voltage control chip of signal;
Said chip controls unit is for receiving the chip controls unit that said grid powers on and accomplishes signal and send power on signal to said leakage pressure-controlled chip.
Preferably,
Draining powers on accomplishes the leakage pressure-controlled chip of signal to said leakage pressure-controlled chip in order to return to the drain electrode output voltage of power tube and to said chip controls unit;
Said chip controls unit is for receiving the chip controls unit that said drain electrode powers on and accomplishes signal and send the pressure regulation signal to said grid voltage control chip.
Preferably,
Said leakage pressure-controlled chip is for being reduced to output voltage 0 and return to said chip controls unit and to close the leakage pressure-controlled chip that electricity is accomplished signal;
Said chip controls unit sends the chip controls unit of pass electric signal for the said pass of reception electricity completion signal and to said grid voltage control chip.
Preferably, said grid voltage control chip, leakage pressure-controlled chip link to each other with the input power supply of power tube respectively with said chip controls unit.
The utility model embodiment base station; Comprise that grid voltage is the power tube of negative pressure; Comprise that also grid voltage is the power-supplying circuit of the power tube of negative pressure; Said grid voltage is that power-supplying circuit and the said grid voltage of the power tube of negative pressure is that the grid of the power tube of negative pressure links to each other respectively with drain electrode, and its internal circuit structure and above-mentioned grid voltage are that the internal circuit configuration of power-supplying circuit of power tube of negative pressure is identical.
The utility model embodiment repeater; Comprise that grid voltage is the power tube of negative pressure; Comprise that also grid voltage is the power-supplying circuit of the power tube of negative pressure; Said grid voltage is that power-supplying circuit and the said grid voltage of the power tube of negative pressure is that the grid of the power tube of negative pressure links to each other respectively with drain electrode, and its internal circuit structure and above-mentioned grid voltage are that the internal circuit configuration of power-supplying circuit of power tube of negative pressure is identical.
The utility model embodiment grid voltage is the power tube power-supplying circuit of negative pressure; One termination power tube; The input power supply of one termination power tube, wherein the grid voltage control chip is used for supplying discharge to the power tube grid, leaks the pressure-controlled chip and is used for supplying discharge to the power tube drain electrode; The confession discharge order of two chips is then controlled in the chip controls unit, makes the grid and the pass that powers in order that drains of power tube.This power-supplying circuit has replaced manual work, and applicability is wide, high reliability features thereby have, and has effectively protected power tube.In addition, because sequential control in the inner completion automatically of this power-supplying circuit, therefore, only needs an input power supply can realize powering on and closing of power tube.The utility model embodiment also discloses a kind of base station and repeater, adopted above-mentioned power-supplying circuit after, the grid voltage in base station and the repeater is that the power tube of negative pressure has corresponding advantages.
Description of drawings
Fig. 1 is that the utility model embodiment grid voltage is the structural representation of power-supplying circuit of the power tube of negative pressure;
Fig. 2 is the structural representation of the utility model embodiment base station;
Fig. 3 is the structural representation of the utility model embodiment repeater.
Embodiment
The utility model embodiment closes electric sequential control with powering on of power tube grid drain electrode to be realized by control circuit, thereby has overcome manually-operated defective, below in conjunction with accompanying drawing and embodiment illustrated in detail the utility model.
The utility model embodiment grid voltage is the power-supplying circuit of the power tube of negative pressure; Link to each other respectively with drain electrode with the grid of power tube (grid voltage is the abbreviation of the power tube of negative pressure); As shown in Figure 1, comprise the grid voltage control chip, leak pressure-controlled chip and chip controls unit, the three links to each other successively.Wherein, The grid voltage control chip connects the grid of power tube; Be used for supplying discharge, leak the drain electrode that the pressure-controlled chip connects power tube, be used for supplying discharge to drain electrode to grid; The chip controls unit then powers on according to the power tube that receives and instructs and the electricity instruction of power tube pass, and the confession discharge order of two chips is made control corresponding.Three's the course of work is following.
When the chip controls unit receive power tube power on the instruction after; At first send power on signal to the grid voltage control chip; Send power on signal to leaking the pressure-controlled chip again, send the pressure regulation signal to the grid voltage control chip at last, the grid voltage control chip is exported negative pressure to the power tube grid after receiving power on signal; Leaking the pressure-controlled chip receives after the power on signal to power tube drain electrode output voltage; The grid voltage control chip is received voltage from the pressure regulation signal to the negative pressure of power tube grid output that will be transferred to the required stationary stream of power tube behind, so, accomplishes powering on of power tube.
After the chip controls unit receives the electricity instruction of power tube pass, at first send the pass electric signal to leaking the pressure-controlled chip, send to the grid voltage control chip again and close electric signal.Leakage pressure-controlled chip will be decreased to 0 to the voltage of power tube drain electrode output after receiving and closing electric signal, and the grid voltage control chip will also be decreased to 0 to the negative pressure that the power tube grid is exported after receiving and closing electric signal, so, accomplish the pass of power tube.
Transmission time interval can be set successively when two chips send signal in the chip controls unit, also can message be accomplished in the action of a chip on receiving after, send signal to next chip again.Therefore; As a preferred embodiment; The grid voltage control chip is also returning the grid completion signal that powers on to the chip controls unit after the grid of power tube output negative pressure, the chip controls unit is received grid and powered on and send power on signal to leaking the pressure-controlled chip again after accomplishing signal.Likewise, leak the pressure-controlled chip and behind the drain electrode output voltage of power tube, also returning the drain electrode completion signal that powers on to the chip controls unit, the chip controls unit is received drain electrode and is powered on and send the pressure regulation signal to the grid voltage control chip again after accomplishing signal.Leak the pressure-controlled chip and after output voltage is reduced to 0, also return pass electricity completion signal to the chip controls unit, the chip controls unit sends the pass electric signal to the grid voltage control chip after receiving and closing electricity completion signal again.
As a preferred embodiment, grid voltage control chip, leakage pressure-controlled chip link to each other with the input power supply of power tube respectively with said chip controls unit.
The base station of the utility model embodiment; As shown in Figure 2; Comprise power amplifier module (power amplifier module), power amplifier module comprises that again grid voltage is the power tube and the power-supplying circuit thereof of negative pressure, and power-supplying circuit links to each other respectively with drain electrode with the grid of power tube; Be used to control powering on and closing the electricity order of power tube grid and drain electrode, its inner structure and workflow and above-mentioned grid voltage are that the inner structure and the workflow of power-supplying circuit of power tube of negative pressure is identical.
The repeater of the utility model embodiment; As shown in Figure 3; Comprise power amplifier module, power amplifier module comprises that again grid voltage is the power tube and the power-supplying circuit thereof of negative pressure, and power-supplying circuit links to each other respectively with drain electrode with the grid of power tube; Be used to control powering on and closing the electricity order of power tube grid and drain electrode, its inner structure and workflow and above-mentioned grid voltage are that the inner structure and the workflow of power-supplying circuit of power tube of negative pressure is identical.
The embodiment of above-described the utility model, and be not used in the qualification of the protection domain that limits the utility model, but describe to the possible embodiments of the utility model.The modification of being done within any spirit and principle based on the utility model, be equal to replacement and improvement etc., all should be included within the claim protection domain of the utility model.
Claims (7)
1. the power-supplying circuit that grid voltage is the power tube of negative pressure is characterized in that, comprise the grid voltage control chip, leak pressure-controlled chip and chip controls unit,
Said chip controls unit receives power tube and closes the electricity instruction and send the chip controls unit that closes electric signal to said leakage pressure-controlled chip, grid voltage control chip successively for receiving power on instruction and send power on signal, send power on signal, send the pressure regulation signal to said grid voltage control chip to said leakage pressure-controlled chip to said grid voltage control chip successively of power tube;
Said grid voltage control chip is for receiving said power on signal and exporting negative pressure to the grid of power tube; Receive said pressure regulation signal and the negative pressure of output is adjusted to the voltage of the required stationary stream of power tube, receive said pass electric signal and the negative pressure of output is reduced to 0 grid voltage control chip;
Said leakage pressure-controlled chip is for receiving said power on signal and to the drain electrode output voltage of power tube, receives said pass electric signal and the voltage of output is reduced to 0 leakage pressure-controlled chip.
2. grid voltage according to claim 1 is the power-supplying circuit of the power tube of negative pressure, it is characterized in that,
Said grid voltage control chip is for to the grid of power tube output negative pressure and return grid to said chip controls unit and power on and accomplish the grid voltage control chip of signal;
Said chip controls unit is for receiving the chip controls unit that said grid powers on and accomplishes signal and send power on signal to said leakage pressure-controlled chip.
3. grid voltage according to claim 1 and 2 is the power-supplying circuit of the power tube of negative pressure, it is characterized in that,
Draining powers on accomplishes the leakage pressure-controlled chip of signal to said leakage pressure-controlled chip in order to return to the drain electrode output voltage of power tube and to said chip controls unit;
Said chip controls unit is for receiving the chip controls unit that said drain electrode powers on and accomplishes signal and send the pressure regulation signal to said grid voltage control chip.
4. grid voltage according to claim 1 and 2 is the power-supplying circuit of the power tube of negative pressure, it is characterized in that,
Said leakage pressure-controlled chip is for being reduced to output voltage 0 and return to said chip controls unit and to close the leakage pressure-controlled chip that electricity is accomplished signal;
Said chip controls unit sends the chip controls unit of pass electric signal for the said pass of reception electricity completion signal and to said grid voltage control chip.
5. grid voltage according to claim 1 and 2 is the power-supplying circuit of the power tube of negative pressure, it is characterized in that, said grid voltage control chip, leakage pressure-controlled chip link to each other with the input power supply of power tube respectively with said chip controls unit.
6. base station; Comprise that grid voltage is the power tube of negative pressure; It is characterized in that; Comprise that also grid voltage is the power-supplying circuit of the power tube of negative pressure, said grid voltage is that power-supplying circuit and the said grid voltage of the power tube of negative pressure is that the grid of the power tube of negative pressure links to each other respectively with drain electrode, and its internal circuit structure is any described structure of claim 1-5.
7. repeater; Comprise that grid voltage is the power tube of negative pressure; It is characterized in that; Comprise that also grid voltage is the power-supplying circuit of the power tube of negative pressure, said grid voltage is that power-supplying circuit and the said grid voltage of the power tube of negative pressure is that the grid of the power tube of negative pressure links to each other respectively with drain electrode, and its internal circuit structure is any described structure of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201041293U CN202512463U (en) | 2012-03-19 | 2012-03-19 | Power supply control circuit, base station and repeater of power amplification tube with negative grid pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201041293U CN202512463U (en) | 2012-03-19 | 2012-03-19 | Power supply control circuit, base station and repeater of power amplification tube with negative grid pressure |
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| CN202512463U true CN202512463U (en) | 2012-10-31 |
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|---|---|---|---|
| CN2012201041293U Expired - Lifetime CN202512463U (en) | 2012-03-19 | 2012-03-19 | Power supply control circuit, base station and repeater of power amplification tube with negative grid pressure |
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| CN (1) | CN202512463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956979A (en) * | 2014-04-01 | 2014-07-30 | 京信通信技术(广州)有限公司 | Power supply control device for power amplifier tube and power-on and power-off control method thereof |
| CN109067366A (en) * | 2018-07-31 | 2018-12-21 | 京信通信系统（中国）有限公司 | A kind of GaN power amplifier power-supplying circuit, upper power down control method |
-
2012
- 2012-03-19 CN CN2012201041293U patent/CN202512463U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956979A (en) * | 2014-04-01 | 2014-07-30 | 京信通信技术(广州)有限公司 | Power supply control device for power amplifier tube and power-on and power-off control method thereof |
| CN109067366A (en) * | 2018-07-31 | 2018-12-21 | 京信通信系统（中国）有限公司 | A kind of GaN power amplifier power-supplying circuit, upper power down control method |
| CN109067366B (en) * | 2018-07-31 | 2022-03-25 | 京信网络系统股份有限公司 | Power supply control circuit and power-on and power-off control method for GaN power amplifier |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |
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| CX01 | Expiry of patent term |