CN101594127A - Full solid-sate radio frequency power supply - Google Patents
Full solid-sate radio frequency power supply Download PDFInfo
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- CN101594127A CN101594127A CNA2009100334336A CN200910033433A CN101594127A CN 101594127 A CN101594127 A CN 101594127A CN A2009100334336 A CNA2009100334336 A CN A2009100334336A CN 200910033433 A CN200910033433 A CN 200910033433A CN 101594127 A CN101594127 A CN 101594127A
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Abstract
The present invention relates to a kind of radio-frequency power supply; particularly a kind of powerful full solid-sate radio frequency power supply based on the MOS-FET amplifier; it comprises modules such as signal source, control circuit, modulation switch, filter, elementary power amplifier, secondary power amplifier, composite filter, power detector; the invention has the beneficial effects as follows long working life; stream time is long; supply frequency and power stability; need not preheating; simple to operate; reduced the engineering labor intensity of operating personnel; and the overall efficiency height, also have vswr protection and overheat protective function.
Description
Technical field
The present invention relates to a kind of radio-frequency power supply, particularly a kind of powerful full solid-sate radio frequency power supply based on the MOS-FET amplifier.
Background technology
At present, the radio-frequency power supply product has homemade conditional electronic pipe radio-frequency power supply and import full solid-sate radio frequency power supply (as external companies such as AE, ENI, COMDEL) on the domestic market.The shared market-share growth of the solid-state radio-frequency power supply of import is very fast, and annual growth rate approximately reached 40% in nearly 2 years, and domestic mainly is to be a little agencies.
The radio-frequency power supply technology that domestic tradition is used is based on the ceramic tube autoexcitation, its earthenware working life is short (to be generally 1200 hours, need the periodic replacement radio-frequency (RF) tube), stream time is short (being generally 4～8 hours), the supply frequency instability, and power fluctuation is big, efficient lower (about 50%), and need preheat etc., complex operation, the later maintenance workload is big.
Summary of the invention
Purpose of the present invention is that the working life that exists at the existing radio-frequency power supply described in the background technology is short, stream time is short, supply frequency is unstable, power fluctuation is big and inefficient problem, and a kind of full solid-sate radio frequency power supply is provided.
Realize that technical scheme of the present invention is as follows:
A kind of full solid-sate radio frequency power supply, it comprises signal source, control circuit, modulation switch, filter, composite filter, power detector, described control circuit and signal source, modulation switch, power detector connects, be connected with the primary amplifier of the first transistor at described modulation switch output, the output of this primary amplifier is connected with described filter, the output of this filter is connected with two-stage amplifier, this two-stage amplifier comprises 787 power amplifier modules and is connected the amplifying circuit with transistor seconds of 787 power amplifier module outputs, described amplifying circuit with transistor seconds comprises transistor seconds, input variable bias circuit, first impedance matching circuit, second impedance matching circuit and power filter choke circuit, input variable bias circuit is connected with the input of transistor seconds with first impedance matching circuit, second impedance matching circuit is connected with the output of transistor seconds with the power filter choke circuit, the output of described transistor seconds is connected with the power division amplifier, the power division amplifier out is connected with composite filter, and the output of this composite filter is connected with the power detector that detects forward power and backward power.
Be connected with electrically controlled attenuator between described filter and the two-stage amplifier.
Described primary amplifier comprises the first transistor, power filter choke circuit and bias circuit, and the output of the first transistor is connected with electric source filter circuit, and this electric source filter circuit is connected with power supply, and the input of the first transistor is connected with bias circuit.
Described power division amplifier comprises power divider and at least two group power amplification circuits, every group of power amplification circuit comprises input impedance matching transformer, transistor and output impedance matching transformer, the output of input impedance matching transformer is connected with transistor, and transistorized output is connected with the output impedance matching transformer.
Described power detector is a directional coupler.
The output of described power detector is connected with protective circuit, and this protective circuit is connected with control circuit.
Described filter is a low pass filter.
Described modulation switch is composed in series by a plurality of high frequency PN pipes.
Beneficial effect of the present invention is as follows:
Because core component of the present invention adopts the import transistor to make, so its long working life, stream time is long, and supply frequency and power stability need not preheating, and be simple to operate, reduced the engineering labor intensity of operating personnel.
Signal source adopts quartz crystal oscillator to produce required frequency signal; after the modulation switch modulation, be amplified to the mW level by the first transistor; at process low pass filter filters out harmonic wave; produce required frequency standard sine wave; control the complete machine power output and play certain buffer action through electrically controlled attenuator again; the protection front stage circuits; be amplified to 1W through 787 power amplifier modules; further be amplified to more than tens watts by transistor seconds then; through transistor seconds the time; transistor seconds is connected with first impedance matching circuit and second impedance matching circuit; 50 Ω that are impedance-matched to transistor input and output; can reduce standing wave like this; increase power output; improve overall efficiency; pass through power divider then; power is divided into some five equilibriums; by some branch road outputs; be respectively arranged with the input impedance matching transformer on every branch road; transistor and output impedance matching transformer; transistor input and output impedance is mated; improve overall efficiency; increase power output; synthesize power by composite filter then, the filtering harmonic wave, the process power detector detects forward and reverse power of power output at last; satisfy condition and get final product power output; when not satisfying condition, adjust modules such as signal source and power amplifier by control circuit output signal is satisfied condition, power output.
Because be provided with protective circuit; so this full solid-sate radio frequency power supply has vswr protection and overheat protective function; corresponding malfunction indicator lamp is bright when the radio frequency source temperature is too high; buzzer rings, and alert is done respective handling, when reflection power surpasses rated power 30%; radio frequency source can indicate backward power excessive; reflection does not also drop to below the safety line after 10 seconds, radio frequency source rupturing duty output automatically, and to host computer system report fault.
Description of drawings
Fig. 1 is the block diagram of full solid-sate radio frequency power supply of the present invention;
Fig. 2 is preceding half section circuit diagram of full solid-sate radio frequency power supply of the present invention;
Fig. 3 is the second half section circuit diagram of full solid-sate radio frequency power supply of the present invention.
Embodiment
With reference to the full solid-sate radio frequency power supply shown in the accompanying drawing 1 to 3, it comprises signal source 1, control circuit 7, modulation switch 2, low pass filter 4, described modulation switch 2 is composed in series by four high frequency PN pipe D1～D4, signal source 1 is a quartz crystal oscillator, described control circuit 7 and signal source 1, modulation switch 2 connects, be connected with primary amplifier at described modulation switch 2 outputs with the first transistor, this primary amplifier comprises the first transistor, power filter choke circuit and bias circuit, described the first transistor is triode T1, the collector electrode of triode T1 is connected with by inductance L 4, capacitor C 3, capacitor C 4, the power filter choke circuit of forming, this power filter choke circuit is connected with the 12V power supply, the base stage of triode T1 is connected with the base bias circuit of being made up of inductance L 3 and resistance R 2, the grounded emitter of triode T1.The output of described primary amplifier is connected with low pass filter 4; the output of this low pass filter 4 is connected with electrically controlled attenuator 15; these electrically controlled attenuator 15 control complete machine power outputs also play certain buffer action protection front stage circuits; the output of electrically controlled attenuator 15 connects two-stage amplifier; this two-stage amplifier comprises 787 power amplifier modules 17 and is connected the amplifying circuit with transistor seconds of 787 power amplifier modules, 17 outputs; described amplifying circuit with transistor seconds comprises transistor seconds; input variable bias circuit; first impedance matching circuit; second impedance matching circuit and power filter choke circuit; transistor seconds is a transistor T 2; input variable bias device is by resistance R 6; inductance L 10; resistance R 8; inductance C11; resistance R 7 is formed; resistance R 7 is connected with+5V power supply; first impedance matching circuit is by capacitor C 7; capacitor C 8; inductance L 6 is formed; second impedance matching circuit is by inductance L 8; capacitor C 12; capacitor C 13 is formed; the power filter choke circuit is by capacitor C 9; capacitor C 10; inductance L 7; inductance L 9 is formed, and inductance L 9 is connected with power supply.The grid impedance of first impedance matching circuit and transistor T 2 matches 50 Ω, second impedance matching circuit and transistor T 2 drain impedance match 50 Ω, input variable bias device is connected the grid of transistor T 2, the power filter choke is connected the drain electrode of transistor T 2, the power filter choke is connected with power supply, transistor T 2 source grounds.The drain electrode of transistor T 2 is connected with power division amplifier 18.Described power division amplifier 18 comprises that power divider and at least two groups have the power amplification circuit of impedance matching effect, every group of power amplification circuit comprises the input impedance matching transformer, transistor and output impedance matching transformer, be example with first group of power amplification circuit below, it is identical with first group of power amplification circuit structure that all the other respectively organize power amplification circuit, the input impedance matching transformer is a transformer 1, transistor is T3, the output impedance matching transformer is a transformer 2, transformer 1 is connected the grid of transistor T 3, transformer 2 is connected the drain electrode of transistor T 3, transistor T 3 source grounds.The power of transistor T 3 outputs outputs to composite filter after transformer 2 impedance matchings, this composite filter is made up of capacitor C 30, capacitor C 31, capacitor C 32, inductance L 17, inductance L 18.The output of composite filter is connected with power detector 14, and power detector 14 is a directional coupler, and its output is connected with protective circuit 12, and this protective circuit 12 is connected with control circuit 7.
Claims (8)
1, a kind of full solid-sate radio frequency power supply, it comprises signal source, control circuit, modulation switch, filter, composite filter, power detector, described control circuit and signal source, modulation switch, power detector connects, it is characterized in that: the primary amplifier that is connected with the first transistor at described modulation switch output, the output of this primary amplifier is connected with described filter, the output of this filter is connected with two-stage amplifier, this two-stage amplifier comprises 787 power amplifier modules and is connected the amplifying circuit with transistor seconds of 787 power amplifier module outputs, described amplifying circuit with transistor seconds comprises transistor seconds, input variable bias circuit, first impedance matching circuit, second impedance matching circuit and power filter choke circuit, input variable bias circuit is connected with the input of transistor seconds with first impedance matching circuit, second impedance matching circuit is connected with the output of transistor seconds with the power filter choke circuit, the output of described transistor seconds is connected with the power division amplifier, the power division amplifier out is connected with composite filter, and the output of this composite filter is connected with the power detector that detects forward power and backward power.
2, full solid-sate radio frequency power supply according to claim 1 is characterized in that: be connected with electrically controlled attenuator between described low pass filter and the two-stage amplifier.
3, full solid-sate radio frequency power supply according to claim 1, it is characterized in that: described primary amplifier comprises the first transistor, power filter choke circuit and bias circuit, the output of the first transistor is connected with electric source filter circuit, this electric source filter circuit is connected with power supply, and the input of the first transistor is connected with bias circuit.
4, full solid-sate radio frequency power supply according to claim 1, it is characterized in that: described power division amplifier comprises power divider and at least two group power amplification circuits, every group of power amplification circuit comprises input impedance matching transformer, transistor and output impedance matching transformer, the output of input impedance matching transformer is connected with transistor, and transistorized output is connected with the output impedance matching transformer.
5, full solid-sate radio frequency power supply according to claim 1 is characterized in that: described power detector is a directional coupler.
6, full solid-sate radio frequency power supply according to claim 1 is characterized in that: the output of described power detector is connected with protective circuit, and this protective circuit is connected with control circuit.
7, full solid-sate radio frequency power supply according to claim 1 is characterized in that: described filter is a low pass filter.
8, full solid-sate radio frequency power supply according to claim 1 is characterized in that: described modulation switch is composed in series by a plurality of high frequency PN pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100334336A CN101594127B (en) | 2009-06-19 | 2009-06-19 | Full solid-sate radio frequency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100334336A CN101594127B (en) | 2009-06-19 | 2009-06-19 | Full solid-sate radio frequency power supply |
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| CN101594127A true CN101594127A (en) | 2009-12-02 |
| CN101594127B CN101594127B (en) | 2011-06-29 |
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| CN2009100334336A Active CN101594127B (en) | 2009-06-19 | 2009-06-19 | Full solid-sate radio frequency power supply |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178483A (en) * | 2011-12-21 | 2013-06-26 | 北京普源精电科技有限公司 | Radio frequency signal source with reverse protection function and reverse protection method |
| CN103219806A (en) * | 2013-04-18 | 2013-07-24 | 苏州源辉电气有限公司 | Wireless power transmission system applied to power supplying of high voltage line device |
| CN103595028A (en) * | 2013-11-20 | 2014-02-19 | 桂林机床电器有限公司 | Anti-overheating switch adjustment modular circuit |
| CN104506254A (en) * | 2014-12-23 | 2015-04-08 | 天津光电通信技术有限公司 | High-power channel process equipment with self functionality checking function |
| CN109428505A (en) * | 2017-09-04 | 2019-03-05 | 北京泰龙电子技术有限公司 | A kind of radio-frequency power supply of BREATHABLE BANDWIDTH |
| CN109428504A (en) * | 2017-09-04 | 2019-03-05 | 北京泰龙电子技术有限公司 | A kind of radio-frequency power supply with adjustable filter coil |
| CN110380694A (en) * | 2018-04-13 | 2019-10-25 | 中国科学院微电子研究所 | Auto-excitation type full solid-sate radio frequency power supply with precision power detector |
| CN110632533A (en) * | 2019-08-08 | 2019-12-31 | 苏州博维仪器科技有限公司 | Power detection system of RF (radio frequency) power supply |
| CN112532237A (en) * | 2020-11-18 | 2021-03-19 | 浙江吉利控股集团有限公司 | Portable adjustable frequency source device |
| CN113037234A (en) * | 2021-05-24 | 2021-06-25 | 成都市克莱微波科技有限公司 | Broadband high-power synthesis method |
| CN113064368A (en) * | 2021-03-18 | 2021-07-02 | 科海技术股份有限公司 | High-power radio frequency power supply system |
| CN113258884A (en) * | 2021-07-08 | 2021-08-13 | 成都市克莱微波科技有限公司 | Processing device for power amplifier synthesis technology and use method thereof |
| CN113411057A (en) * | 2021-07-30 | 2021-09-17 | 广州慧智微电子有限公司 | Power amplification device, method and equipment |
| CN113630262A (en) * | 2021-07-28 | 2021-11-09 | 常州瑞思杰尔电子科技有限公司 | Multi-group same-phase 100W60MHz radio frequency power supply system |
| CN117353260A (en) * | 2023-11-02 | 2024-01-05 | 深圳市恒运昌真空技术有限公司 | Energy overshoot suppression circuit based on balanced power amplifier and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1252132B (en) * | 1991-11-27 | 1995-06-05 | Sits Soc It Telecom Siemens | RADIOFREQUENCY FREQUENCY MULTIPLIER INCLUDING AN AUTOMATIC LEVEL CONTROL CIRCUIT |
| CN2550985Y (en) * | 2001-09-12 | 2003-05-14 | 信息产业部电信传输研究所 | Radio frequency module for multiple frequency multiple model mobile phone |
| US7352237B2 (en) * | 2005-03-25 | 2008-04-01 | Pulsewave Rf, Inc. | Radio frequency power amplifier and corresponding method |
-
2009
- 2009-06-19 CN CN2009100334336A patent/CN101594127B/en active Active
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178483A (en) * | 2011-12-21 | 2013-06-26 | 北京普源精电科技有限公司 | Radio frequency signal source with reverse protection function and reverse protection method |
| CN103178483B (en) * | 2011-12-21 | 2017-12-22 | 北京普源精电科技有限公司 | A kind of radio-frequency signal source and reverse protection method with reverse protection function |
| CN103219806A (en) * | 2013-04-18 | 2013-07-24 | 苏州源辉电气有限公司 | Wireless power transmission system applied to power supplying of high voltage line device |
| CN103595028A (en) * | 2013-11-20 | 2014-02-19 | 桂林机床电器有限公司 | Anti-overheating switch adjustment modular circuit |
| CN103595028B (en) * | 2013-11-20 | 2017-03-15 | 广东智卓通信科技有限公司 | A kind of overheating proof switch adjusting module circuit |
| CN104506254A (en) * | 2014-12-23 | 2015-04-08 | 天津光电通信技术有限公司 | High-power channel process equipment with self functionality checking function |
| CN104506254B (en) * | 2014-12-23 | 2017-01-11 | 天津光电通信技术有限公司 | High-power channel process equipment with self functionality checking function |
| CN109428505A (en) * | 2017-09-04 | 2019-03-05 | 北京泰龙电子技术有限公司 | A kind of radio-frequency power supply of BREATHABLE BANDWIDTH |
| CN109428504A (en) * | 2017-09-04 | 2019-03-05 | 北京泰龙电子技术有限公司 | A kind of radio-frequency power supply with adjustable filter coil |
| CN110380694A (en) * | 2018-04-13 | 2019-10-25 | 中国科学院微电子研究所 | Auto-excitation type full solid-sate radio frequency power supply with precision power detector |
| CN110632533A (en) * | 2019-08-08 | 2019-12-31 | 苏州博维仪器科技有限公司 | Power detection system of RF (radio frequency) power supply |
| CN112532237A (en) * | 2020-11-18 | 2021-03-19 | 浙江吉利控股集团有限公司 | Portable adjustable frequency source device |
| CN113064368A (en) * | 2021-03-18 | 2021-07-02 | 科海技术股份有限公司 | High-power radio frequency power supply system |
| CN113064368B (en) * | 2021-03-18 | 2022-03-08 | 科海技术股份有限公司 | High-power radio frequency power supply system |
| CN113037234A (en) * | 2021-05-24 | 2021-06-25 | 成都市克莱微波科技有限公司 | Broadband high-power synthesis method |
| CN113258884A (en) * | 2021-07-08 | 2021-08-13 | 成都市克莱微波科技有限公司 | Processing device for power amplifier synthesis technology and use method thereof |
| CN113630262A (en) * | 2021-07-28 | 2021-11-09 | 常州瑞思杰尔电子科技有限公司 | Multi-group same-phase 100W60MHz radio frequency power supply system |
| CN113630262B (en) * | 2021-07-28 | 2023-12-15 | 常州瑞思杰尔电子科技有限公司 | Multiunit homophase 100W60MHz radio frequency power supply system |
| CN113411057A (en) * | 2021-07-30 | 2021-09-17 | 广州慧智微电子有限公司 | Power amplification device, method and equipment |
| CN117353260A (en) * | 2023-11-02 | 2024-01-05 | 深圳市恒运昌真空技术有限公司 | Energy overshoot suppression circuit based on balanced power amplifier and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN101594127B (en) | 2011-06-29 |
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