CN110120741A - A kind of adjustable power amplifier power supply unit of voltage - Google Patents
A kind of adjustable power amplifier power supply unit of voltage Download PDFInfo
- Publication number
- CN110120741A CN110120741A CN201910309250.6A CN201910309250A CN110120741A CN 110120741 A CN110120741 A CN 110120741A CN 201910309250 A CN201910309250 A CN 201910309250A CN 110120741 A CN110120741 A CN 110120741A
- Authority
- CN
- China
- Prior art keywords
- power supply
- power amplifier
- supply unit
- adjustable
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of adjustable power amplifier power supply units of voltage, comprising: decoder circuit (1), switching network (2), resistor network (3) and power supply (4)；Using the value of adjustment resistor network (3), and then the output voltage values of power amplifier power supply (4) are adjusted, output voltage values become, and power amplifier output power will change therewith.Apparatus of the present invention are applied on power amplification system, be can satisfy power amplifier module and are adjusted in power supply (4) voltage, and then realize the adjustable demand of power amplifier output power.
Description
Technical field
The present invention relates to a kind of power amplifier power supply unit, especially a kind of adjustable power amplifier power supply unit of voltage.
Background technique
With the requirement of radar system, realize that the demand to power amplifier power adjustable is more more and more urgent.Adjust power amplifier function
The traditional approach of rate output is to realize by adjusting the input stimulus of power amplifier, but this mode has the shortcomings that unconquerable, drop
The waveform distortions that low excitation can be such that power amplifier exports are serious, and top drop greatly increases, and very big influence is caused to system performance.And mesh
After preceding common power amplifier power supply unit voltage is fixed, it can not adjust during the work time, it is necessary to stop power supply, product is uncapped,
The replacement of regulating resistor is carried out, these are all unable to satisfy system requirement,
Summary of the invention
The purpose of the present invention is to provide a kind of adjustable power amplifier power supply unit of voltage, solve previous device be by adjusting
The input stimulus of power amplifier realizes, but this mode has the shortcomings that unconquerable, reduces the waveform that excitation can be such that power amplifier exports and becomes
Shape is serious, and top drop greatly increases, and very big influence is caused to system performance.And currently used power amplifier power supply unit voltage is fixed
Afterwards, it can not adjust during the work time, it is necessary to stop power supply, product is uncapped, the replacement of regulating resistor is carried out, these all can not
The problem of meeting system requirement.
A kind of adjustable power amplifier power supply unit of voltage, comprising: decoder circuit, switching network, resistor network and power supply.
Wherein decoder circuit is connected with switching network, and switching network is connected with resistor network, resistor network and power supply
It is connected.
The quantity switched in switching network is k, a way switch and an electricity as the quantity of resistance in resistor network
Resistance series connection, then the series circuit of k way switch resistance carries out parallel connection again.
Preferably, decoder circuit is 2-4 decoder circuit.
Preferably, k is 4 tunnels.
Preferably, decoder circuit is 3-8 decoder circuit.
Preferably, k is 8 tunnels.
Preferably, decoder circuit is 4-16 decoder circuit.
Preferably, k is 16 tunnels.
Preferably, power supply is power amplifier power supply.
Preferably, power supply is that input voltage turns+8V power supply or turns+28V power supply.
Preferably, when the adjustable power amplifier power supply unit of voltage works, control signal enters decoder circuit, decoder circuit
Output be connected to switching network, switching network controls the on-off of resistance in resistor network, the adjustment of Lai Shixian resistance value, resistor network
As the adjustment resistance of power supply, to adjust the output voltage of power supply.
The adjustable power amplifier power supply unit of voltage is the supply voltage of logical adjustment power amplifier to realize the adjustment of power in the present invention,
Output waveform will not deform in this way, be truly realized the purpose of power amplifier module power adjustment, meet system requirement.
The present invention provides a kind of adjustable power amplifier power supply unit of voltage, using the value of adjustment resistor network, and then adjusts function
The output voltage values of power supply are put, output voltage values become, and power amplifier output power will change therewith.Apparatus of the present invention application
On power amplification system, it can satisfy power amplifier module and adjusted in power supply voltage, and then realize the adjustable need of power amplifier output power
It asks.
Detailed description of the invention
Fig. 1 is a kind of structure chart of the adjustable power amplifier power supply unit of voltage of the present invention.
1. 2. switching network of decoder circuit
3. 4. power supply of resistor network
Specific embodiment
A specific embodiment of the invention is explained in detail below with reference to embodiment and attached drawing.Fig. 1 is of the invention
The structure chart of the adjustable power amplifier power supply unit of voltage.In figure, decoder circuit 1, switching network 2, resistor network 3, power supply 4.
The gear of adjustment is wanted to select decoder circuit 1 according to power supply 4 when use:
Such as want fourth gear it is adjustable, can choose 2-4 decoder circuit, it is desirable to 8 tunnels are adjustable, may be selected 3-8 decoder electricity
Road, it is desirable to 16 tunnels are adjustable, and 4-16 decoder circuit may be selected, and so on.Decoder circuit 1 may be implemented in different control codes
Different output states.
The quantity of switching network 2 and resistor network 3 can be determined according to the gear number to be adjusted, and realize several grades of voltage tune
It is whole, several roads are just set, it is contemplated that product realizability is general that 16 tunnels or less are arranged.
Switch number is selected according to the number of decoder circuit 1, switching network 2 and resistor network 3 are connected one by one, every road
Resistance, the on-off of the output level control switch of decoder circuit 1, switch this road resistance of general rule are connected, are opened all the way for switch series connection
It turns off the road Ze Ci resistance to disconnect, not work.
The resistance on-off of the different numbers of resistor network 3 can change the value of resistor network 3, and the value of resistor network 3 changes, electricity
The output voltage in source 4 will change, and voltage change can bring the variation of power amplifier output power.
The adjustable power amplifier power supply unit of a kind of voltage of the invention, comprising: decoder circuit 1, switching network 2, resistance net
Network 3 and power supply 4.
Wherein decoder circuit 1 is connected with switching network 2, and switching network 2 is connected with resistor network 3, resistor network 3 with
Power supply 4 is connected.
The quantity switched in switching network 2 is k as the quantity of resistance in resistor network 3, a way switch and one
Resistance series connection, then the series circuit of k way switch resistance carries out parallel connection again.
K is 4 tunnels, 8 tunnels or 16 tunnels.
When voltage adjustable power amplifier power supply unit work, control signal enters decoder circuit 1, decoder circuit 1 it is defeated
It is connected to switching network 2 out, switching network 2 controls the on-off of resistance in resistor network 3, the adjustment of Lai Shixian resistance value, resistor network 3
As the adjustment resistance of power supply 4, to adjust the output voltage of power supply 4.
Power supply 4 is power amplifier power supply.
General power supply 4 is that input voltage turns+8V power supply or turns+28V power supply.
Claims (10)
1. a kind of adjustable power amplifier power supply unit of voltage characterized by comprising decoder circuit (1), switching network (2), electricity
Hinder network (3) and power supply (4)；
Wherein decoder circuit (1) is connected with switching network (2), and switching network (2) is connected with resistor network (3), resistance net
Network (3) is connected with power supply (4)；
The quantity switched in switching network (2) is k as the quantity of resistor network (3) interior resistance, a way switch and one
Resistance series connection, then the series circuit of k way switch resistance carries out parallel connection again.
2. the adjustable power amplifier power supply unit of a kind of voltage according to claim 1, which is characterized in that the decoder electricity
Road (1) is 2-4 decoder circuit.
3. the adjustable power amplifier power supply unit of a kind of voltage according to claim 2, which is characterized in that the k is 4 tunnels.
4. the adjustable power amplifier power supply unit of a kind of voltage according to claim 1, which is characterized in that the decoder electricity
Road (1) is 3-8 decoder circuit.
5. the adjustable power amplifier power supply unit of a kind of voltage according to claim 4, which is characterized in that the k is 8 tunnels.
6. the adjustable power amplifier power supply unit of a kind of voltage according to claim 1, which is characterized in that the decoder electricity
Road (1) is 4-16 decoder circuit.
7. the adjustable power amplifier power supply unit of a kind of voltage according to claim 6, which is characterized in that the k is 16 tunnels.
8. the adjustable power amplifier power supply unit of a kind of voltage according to claim 1, which is characterized in that the power supply (4)
For power amplifier power supply.
9. the adjustable power amplifier power supply unit of a kind of voltage according to claim 8, which is characterized in that the power supply (4)
It is that input voltage turns+8V power supply or turns+28V power supply.
10. the adjustable power amplifier power supply unit of a kind of voltage according to claim 1, which is characterized in that
When voltage adjustable power amplifier power supply unit work, control signal enters decoder circuit (1), decoder circuit (1) it is defeated
It is connected to out switching network (2), switching network (2) controls the on-off of resistance in resistor network (3), the adjustment of Lai Shixian resistance value, electricity
The adjustment resistance of network (3) as power supply (4) is hindered, to adjust the output voltage of power supply (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309250.6A CN110120741A (en) | 2019-04-17 | 2019-04-17 | A kind of adjustable power amplifier power supply unit of voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309250.6A CN110120741A (en) | 2019-04-17 | 2019-04-17 | A kind of adjustable power amplifier power supply unit of voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110120741A true CN110120741A (en) | 2019-08-13 |
Family
ID=67521089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910309250.6A Pending CN110120741A (en) | 2019-04-17 | 2019-04-17 | A kind of adjustable power amplifier power supply unit of voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110120741A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060068697A1 (en) * | 2002-10-28 | 2006-03-30 | Matsushita Electric Industrial Co., Ltd | Transmitter |
| CN101242679A (en) * | 2008-02-29 | 2008-08-13 | 中兴通讯股份有限公司 | A share audio power amplification circuit for multi-audio source and its control method |
| CN107066013A (en) * | 2017-06-21 | 2017-08-18 | 电子科技大学 | A kind of logging instrument amplifier power supply self-adapting adjusting apparatus |
| CN107066000A (en) * | 2017-06-21 | 2017-08-18 | 电子科技大学 | A kind of logging instrument amplifier power supply self-adapting regulation method |
-
2019
- 2019-04-17 CN CN201910309250.6A patent/CN110120741A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060068697A1 (en) * | 2002-10-28 | 2006-03-30 | Matsushita Electric Industrial Co., Ltd | Transmitter |
| CN101242679A (en) * | 2008-02-29 | 2008-08-13 | 中兴通讯股份有限公司 | A share audio power amplification circuit for multi-audio source and its control method |
| CN107066013A (en) * | 2017-06-21 | 2017-08-18 | 电子科技大学 | A kind of logging instrument amplifier power supply self-adapting adjusting apparatus |
| CN107066000A (en) * | 2017-06-21 | 2017-08-18 | 电子科技大学 | A kind of logging instrument amplifier power supply self-adapting regulation method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190813 |
|
| WD01 | Invention patent application deemed withdrawn after publication |