CN100566163C - A kind of current imposing sequence control circuit that is used for power amplifier - Google Patents
A kind of current imposing sequence control circuit that is used for power amplifier Download PDFInfo
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- CN100566163C CN100566163C CNB2006101141074A CN200610114107A CN100566163C CN 100566163 C CN100566163 C CN 100566163C CN B2006101141074 A CNB2006101141074 A CN B2006101141074A CN 200610114107 A CN200610114107 A CN 200610114107A CN 100566163 C CN100566163 C CN 100566163C
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Abstract
The invention discloses a kind of current imposing sequence control circuit that is used for power amplifier, the technical problem of solution is the control powering order.This circuit comprises: positive supply circuit and negative supply circuit, described positive supply circuit has an output control terminal, the drain electrode end of one field effect transistor is connected to the output control terminal of described positive supply circuit, source terminal ground connection, the collector terminal of a gate pole end and a triode is jointly by first grounding through resistance, the base terminal of described triode is connected to the positive terminal of a voltage stabilizing didoe by second resistance, and the negative pole end of described voltage stabilizing didoe is connected to a direct current power supply; The output of described negative supply circuit is connected to the emitter terminal of described triode and as the negative voltage output of this current imposing sequence control circuit, the output of described positive supply circuit is the positive voltage output end of this current imposing sequence control circuit.The present invention can guarantee correct powering order, can guaranteed output amplifier trouble free service.
Description
Technical field
The present invention relates to control circuit, particularly a kind of current imposing sequence control circuit that is used for power amplifier.
Background technology
In the use of some devices, particularly some power amplifiers need positive and negative power voltage supply, and need to power up the ability operate as normal by certain powering order, otherwise power amplifier will be burnt.The operating state that is a power amplifier as shown in Figure 1 adds electrical schematic, as an example, the figure intermediate power amplifier needs-the 5V power voltage supply on the one hand, needs on the other hand+power supply of 10V power supply, for guaranteed output amplifier operate as normal, need add earlier-5V voltage adds later on+10V voltage again; Do not adding-during 5V voltage ,+10V voltage can not be added on the power amplifier; The process of this sequence power on is finished under manually operated situation often, and this brings certain workload and work difficulty to the technical staff.Do not having under the manually operated situation,, just needing the trouble free service that current imposing sequence control circuit comes the guaranteed output amplifier such as in use in the space.
Summary of the invention
The technical problem to be solved in the present invention is the powering order control to power amplifier, the trouble free service of guaranteed output amplifier.
In order to achieve the above object, the present invention takes following technical scheme:
A kind of current imposing sequence control circuit that is used for power amplifier comprises: the positive supply circuit 10 of positive voltage output and the negative supply circuit 11 that provides negative voltage to export are provided, and described positive supply circuit has an output control terminal 12; Also comprise: the drain electrode end of a field effect transistor 13 is connected to the output control terminal 12 of described positive supply circuit 10, source terminal ground connection, the collector terminal of a gate pole end and a triode 14 is jointly by first resistance, 15 ground connection, the base terminal of described triode 14 is connected to the positive terminal of a voltage stabilizing didoe 17 by second resistance 16, and the negative pole end of described voltage stabilizing didoe 17 is connected to a direct current power supply 18; The output of described negative supply circuit 11 is connected to the emitter terminal of described triode 14 and as the negative voltage output 19 of this current imposing sequence control circuit, the output of described positive supply circuit 10 is positive voltage output ends 20 of this current imposing sequence control circuit.
In technique scheme, further, also comprise first electric capacity 21, these first electric capacity, 21 1 end ground connection, the other end is connected to the emitter terminal of described triode 14.
In technique scheme, further, also comprise second electric capacity 22, an end ground connection of this second electric capacity 22, the other end is connected to the positive terminal of described voltage stabilizing didoe 17.
The present invention has following advantage:
Guarantee correct powering order, add negative voltage earlier and add positive voltage later on again; When not adding negative voltage, positive voltage can not be added on the power amplifier yet, do not having under the manually operated situation like this, and such as in use in the space, just can guaranteed output amplifier trouble free service.
Description of drawings
Fig. 1 is the power-up circuit figure of power amplifier;
Fig. 2 is the circuit diagram of the embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
As embodiment, consider the powering order problem of power amplifier as shown in Figure 1 herein, this power amplifier need+10V and-could work under two kinds of power supplys of 5V, and-5V must power up prior to+10V, just can not burn power amplifier, if power supply is not taked any measure, just can not guarantee-5V must power up this condition prior to+10V.
With reference to Fig. 2, a kind of current imposing sequence control circuit that is used for power amplifier comprises: the positive supply circuit 10 of positive voltage output and the negative supply circuit 11 that provides negative voltage to export are provided, and described positive supply circuit has an output control terminal 12; It is characterized in that, also comprise: the drain electrode end of a field effect transistor 13 is connected to the output control terminal 12 of described positive supply circuit 10, source terminal ground connection, the collector terminal of a gate pole end and a triode 14 is jointly by first resistance, 15 ground connection, the base terminal of described triode 14 is connected to the positive terminal of a voltage stabilizing didoe 17 by second resistance 16, the negative pole end of described voltage stabilizing didoe 17 is connected to a direct current power supply 18, and direct voltage is+5V; The output of described negative supply circuit 11 is connected to the emitter terminal of described triode 14 and as the negative voltage output 19 of this current imposing sequence control circuit, the output of described positive supply circuit 10 is positive voltage output ends 20 of this current imposing sequence control circuit, also comprise first electric capacity 21, these first electric capacity, 21 1 end ground connection, the other end is connected to the emitter terminal of described triode 14, one end ground connection of second electric capacity 22, the other end is connected to the positive terminal of described voltage stabilizing didoe 17.
Wherein, positive supply circuit 10 adopts and provides+the DC/DC power module of 10V, such as the interpoint product, this positive supply circuit 10 does not have voltage output when output control terminal ground connection; The negative supply of negative supply circuit 11 employing-5V; This current imposing sequence control circuit is worked in the following manner: the DC/DC power supply is responsible for providing+the 10V power supply to power amplifier, and during its output control terminal ground connection, the DC/DC power module does not have+10V output.The negative supply circuit 11 of-5V provides the negative voltage to power amplifier.When not having 11 outputs of negative supply circuit, voltage stabilizing didoe 17 ends, and triode 14 ends, field effect transistor 13 conductings, field effect transistor 13 to " output control " terminal shortcircuit of DC/DC power module to ground connection, thereby having controlled the DC/DC power module does not have+10V output, power amplifier adds and does not power on.As negative supply circuit 11-during 5V voltage, voltage stabilizing didoe 17 voltage stabilizings are at 8V, triode 14 conductings, field effect transistor 13 is ended, field effect transistor 13 makes DC/DC power module " output control " end high resistant, the DC/DC power module has+10V voltage output, thereby guaranteed-5V must be prior to+order that 10V powers up.Above device is conventional device that sell in market.Voltage stabilizing didoe 17 voltage stabilizing values are 8V, and first resistance 15 is 5.6 kilo-ohms (K Ω), and second resistance 16 is 1 kilo-ohm (K Ω), and triode 14, field effect transistor 13 and be conventional products that sell in market as first electric capacity 21, second electric capacity 22 of filter capacitor.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1, a kind of current imposing sequence control circuit that is used for power amplifier comprises: the positive supply circuit (10) that positive voltage output is provided of an output control terminal (12) and the negative supply circuit (11) that provides negative voltage to export are provided; It is characterized in that, also comprise a field effect transistor (13), a triode (14), first resistance (15), second resistance (16), voltage stabilizing didoe (17) and DC power supply (18); Wherein, the drain electrode end of described field effect transistor (13) is connected to the output control terminal (12) of described positive supply circuit (10), the source terminal ground connection of described field effect transistor (13), the collector terminal of gate terminal of this field effect transistor (13) and described triode (14) is jointly by described first resistance (15) ground connection, the base terminal of described triode (14) is connected to the positive terminal of described voltage stabilizing didoe (17) by described second resistance (16), and the negative pole end of described voltage stabilizing didoe (17) is connected to described DC power supply (18); The output of described negative supply circuit (11) is connected to the emitter terminal of described triode (14) and as the negative voltage output (19) of this current imposing sequence control circuit, the output of described positive supply circuit (10) is the positive voltage output end (20) of this current imposing sequence control circuit.
2, according to the described current imposing sequence control circuit that is used for power amplifier of claim 1, it is characterized in that, also comprise first electric capacity (21), these first electric capacity (21) one end ground connection, the other end is connected to the emitter terminal of described triode (14).
3, according to claim 1 or the 2 described current imposing sequence control circuits that are used for power amplifier, it is characterized in that, also comprise second electric capacity (22), an end ground connection of this second electric capacity (22), the other end is connected to the positive terminal of described voltage stabilizing didoe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101141074A CN100566163C (en) | 2006-10-27 | 2006-10-27 | A kind of current imposing sequence control circuit that is used for power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101141074A CN100566163C (en) | 2006-10-27 | 2006-10-27 | A kind of current imposing sequence control circuit that is used for power amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101170304A CN101170304A (en) | 2008-04-30 |
| CN100566163C true CN100566163C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101141074A Expired - Fee Related CN100566163C (en) | 2006-10-27 | 2006-10-27 | A kind of current imposing sequence control circuit that is used for power amplifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN100566163C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611396A (en) * | 2011-12-22 | 2012-07-25 | 中国科学院空间科学与应用研究中心 | Microwave solid-state power amplifier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138778A (en) * | 1994-11-29 | 1996-12-25 | 拉里C·Y·李 | Manual override mechanism for automatic switching circuit |
| WO2001091286A1 (en) * | 2000-05-25 | 2001-11-29 | Koninklijke Philips Electronics N.V. | Carrousel handshake |
| CN1531176A (en) * | 2003-03-15 | 2004-09-22 | 鸿富锦精密工业（深圳）有限公司 | Current driver |
| CN201054566Y (en) * | 2006-10-27 | 2008-04-30 | 中国科学院空间科学与应用研究中心 | A power amplifier for space application |
-
2006
- 2006-10-27 CN CNB2006101141074A patent/CN100566163C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138778A (en) * | 1994-11-29 | 1996-12-25 | 拉里C·Y·李 | Manual override mechanism for automatic switching circuit |
| WO2001091286A1 (en) * | 2000-05-25 | 2001-11-29 | Koninklijke Philips Electronics N.V. | Carrousel handshake |
| CN1531176A (en) * | 2003-03-15 | 2004-09-22 | 鸿富锦精密工业（深圳）有限公司 | Current driver |
| CN201054566Y (en) * | 2006-10-27 | 2008-04-30 | 中国科学院空间科学与应用研究中心 | A power amplifier for space application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101170304A (en) | 2008-04-30 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20161027 |