CN103580608B - A kind of adjustable signal source circuit - Google Patents
A kind of adjustable signal source circuit Download PDFInfo
- Publication number
- CN103580608B CN103580608B CN201310411494.8A CN201310411494A CN103580608B CN 103580608 B CN103580608 B CN 103580608B CN 201310411494 A CN201310411494 A CN 201310411494A CN 103580608 B CN103580608 B CN 103580608B
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- diode
- amplifier
- resistance
- adjustable
- signal source
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Abstract
The invention discloses a kind of adjustable signal source circuit, including amplifier, resistance, diode and variable resistor, the present invention passes through two stage amplifer, uses Zener diode, forms stable waveform output, by regulation slide rheostat, the amplitude of regulation output signal and frequency, circuit structure of the present invention is simple, low cost, stability is strong, it is adaptable to small-size laboratory.
Description
Technical field
The present invention relates to a kind of signal source circuit, particularly to a kind of adjustable signal source circuit.
Background technology
Signal source circuit is the core unit circuit of Analogous Integrated Electronic Circuits; especially in power management class chip; signal source often determines the performance indications of this type of chip, and it is widely used in the various simulations such as oscillator, phaselocked loop and data converter and hybrid digital-analog integrated circuit.But its circuit is complicated, power consumption is big, is not easy to low-power system application.
Therefore need a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
Goal of the invention: the problem and shortage existed for above-mentioned prior art, it is an object of the invention to provide a kind of adjustable signal source circuit, its low cost, and waveform stabilization exports.
Technical scheme: the technical solution adopted in the present invention is a kind of adjustable signal source circuit, including amplifier, resistance, diode and variable resistor, the output of the first amplifier is connected with the normal phase input end of the first amplifier by the series connection of the first resistance and the second resistance, one end of first resistance is connected with the positive pole of the second diode, the negative pole of the second diode and the negative pole of the 3rd diode are connected, the plus earth of the 3rd diode；One end of first resistance is connected with one end of the 3rd resistance, first variable-resistance adjustable side is connected with the positive pole of the 4th diode, the positive pole of the 4th diode and the negative pole of the 5th diode are connected, the positive pole of the 5th diode is connected by the negative pole of the 3rd variable resistor and the 4th diode, 3rd variable-resistance adjustable side is connected with the inverting input of the second amplifier, the positive input end grounding of the second amplifier, the output of the second amplifier is connected with its inverting input by electric capacity, the output of the second amplifier is connected with one end of the second adjustable resistance, the adjustable side of the second adjustable resistance is connected with the normal phase input end of the first amplifier.
Preferably, the 4th diode and the 5th diode are Zener diode.
Beneficial effect: the present invention is compared with prior art, its advantage is that the present invention passes through two stage amplifer, use Zener diode, form stable waveform output, by regulation slide rheostat, the amplitude of regulation output signal and frequency, circuit structure of the present invention is simple, low cost, stability is strong, it is adaptable to small-size laboratory.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, the present invention includes amplifier, resistance, diode and variable resistor, the output of the first amplifier U1 is connected with the normal phase input end of the first amplifier U1 by the series connection of the first resistance R1 and the second resistance R2, one end of first resistance R1 is connected with the positive pole of the second diode D2, the negative pole of the second diode D2 and the negative pole of the 3rd diode D1 are connected, the plus earth of the 3rd diode D1；One end of first resistance R1 is connected with one end of the 3rd resistance R3, the adjustable side of the first variable resistor R3 is connected with the positive pole of the 4th diode D4, the positive pole of the 4th diode D4 and the negative pole of the 3rd diode D3 are connected, the positive pole of the 3rd diode D3 is connected by the negative pole of the 3rd variable resistor R5 and the 4th diode D4, the adjustable side of the 3rd variable resistor R5 is connected with the inverting input of the second amplifier U2, the positive input end grounding of the second amplifier U2, the output of the second amplifier U2 is connected with its inverting input by electric capacity C1, the output of the second amplifier U2 is connected with one end of the second adjustable resistance R4, the adjustable side of described the second adjustable resistance R4 is connected with the normal phase input end of the first amplifier U1.
4th diode D4 and the 3rd diode D3 can use Zener diode.
The present invention passes through two stage amplifer, uses Zener diode, forms stable waveform output, changing output waveform frequency by regulating the first variable resistor R3, regulation the second adjustable resistance R4 changes output amplitude, and circuit structure of the present invention is simple, low cost, stability is strong, it is adaptable to small-size laboratory.
Claims (2)
1. an adjustable signal source circuit, it is characterised in that: include amplifier, resistance, diode and can power transformation
Resistance, described amplifier includes the first amplifier (U1) and the second amplifier (U2), described first amplifier (U1) defeated
Go out end to be inputted by the positive of the series connection of the first resistance (R1) and the second resistance (R2) with the first amplifier (U1)
End is connected, and one end of the first resistance (R1) is connected with the positive pole of the second diode (D2), described two or two pole
The negative pole of pipe (D2) and the negative pole of the first diode (D1) are connected, the positive pole of described first diode (D1)
Ground connection；One end of described first resistance (R1) is connected with one end of the first variable resistor (R3), and described
The fixing end of one variable resistor (R3) and the positive pole of the 4th diode (D4) are connected, described 4th diode (D4)
Positive pole and the 3rd diode (D3) negative pole be connected, the positive pole of described 3rd diode (D3) pass through the 3rd
Variable resistor (R5) is connected with the negative pole of the 4th diode (D4), the tune of described 3rd variable resistor (R5)
Joint end is connected with the adjustable side of the second adjustable resistance (R4), the fixing end of this second adjustable resistance (R4) and the
The inverting input of two amplifiers (U2) is connected, the positive input end grounding of described second amplifier (U2), and second
The output of amplifier (U2) is connected with its inverting input by electric capacity (C1), described second amplifier (U2)
Output be connected with one end of the second adjustable resistance (R4), the adjustable side of described the second adjustable resistance (R4)
It is connected with the normal phase input end of the first amplifier (U1).
A kind of adjustable signal source circuit the most according to claim 1, it is characterised in that: the described 4th
Diode (D4) and the 3rd diode (D3) are Zener diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310411494.8A CN103580608B (en) | 2013-09-11 | 2013-09-11 | A kind of adjustable signal source circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310411494.8A CN103580608B (en) | 2013-09-11 | 2013-09-11 | A kind of adjustable signal source circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103580608A CN103580608A (en) | 2014-02-12 |
| CN103580608B true CN103580608B (en) | 2016-08-31 |
Family
ID=50051690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310411494.8A Expired - Fee Related CN103580608B (en) | 2013-09-11 | 2013-09-11 | A kind of adjustable signal source circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103580608B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568242B (en) * | 2014-12-09 | 2017-04-05 | 太原航空仪表有限公司 | The small-sized resonant vibration barrel pressure pickup signal conditioning circuit of piezoelectric excitation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101156314A (en) * | 2005-04-04 | 2008-04-02 | 东京毅力科创株式会社 | Microwave generating apparatus and microwave generating method |
| CN202150797U (en) * | 2011-08-10 | 2012-02-22 | 天津市东文高压电源厂 | Performance improving circuit of miniature high voltage isolation VV converter |
| CN103124161A (en) * | 2011-11-18 | 2013-05-29 | 四川蓝讯宝迩电子科技有限公司 | Signal source circuit based on oscillator and filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1445678A1 (en) * | 2003-02-05 | 2004-08-11 | Agilent Technologies, Inc. - a Delaware corporation - | Voltage to current converter |
-
2013
- 2013-09-11 CN CN201310411494.8A patent/CN103580608B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101156314A (en) * | 2005-04-04 | 2008-04-02 | 东京毅力科创株式会社 | Microwave generating apparatus and microwave generating method |
| CN202150797U (en) * | 2011-08-10 | 2012-02-22 | 天津市东文高压电源厂 | Performance improving circuit of miniature high voltage isolation VV converter |
| CN103124161A (en) * | 2011-11-18 | 2013-05-29 | 四川蓝讯宝迩电子科技有限公司 | Signal source circuit based on oscillator and filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103580608A (en) | 2014-02-12 |
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Effective date of registration: 20160810 Address after: 2 Building 3, 215300 Feng Lu, Zhenjiang, Suzhou, Jiangsu Applicant after: Kunshan Longshida Electronic Material Co.,Ltd. Address before: Suzhou City, Jiangsu Province, Kunshan City Zhang Pu Feng Zhenjiang Road No. 3 room 2 Applicant before: Kunshan Xinjinfu Precision Electronics Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170911 |
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| CF01 | Termination of patent right due to non-payment of annual fee |