CN205232174U - Oscillating circuit - Google Patents
Oscillating circuit Download PDFInfo
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- CN205232174U CN205232174U CN201521098575.8U CN201521098575U CN205232174U CN 205232174 U CN205232174 U CN 205232174U CN 201521098575 U CN201521098575 U CN 201521098575U CN 205232174 U CN205232174 U CN 205232174U
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- 238000010586 diagram Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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Abstract
The utility model discloses an oscillating circuit. This oscillating circuit includes: catching diode D, phase inverter A1, A2, A3, electric capacity C, resistance R1, R2, the voltage source end is connected to catching diode D's negative pole, catching diode D's anodal connection phase inverter A1's input and resistance R1's one end, and electric capacity C's one end and resistance R2's one end are connected to resistance R1's the other end, and phase inverter A2's input is connected to phase inverter A1's output, and phase inverter A3's the input and electric capacity C's the other end, phase inverter A3's output, resistance R2's other end connection oscillating circuit's output is connected to phase inverter A2's output. The utility model provides an oscillating circuit adopts the most frequently used reverse door device and resistance capacitance to constitute, the simplified circuit, and with low costs, it is convenient to realize, and it is convenient to change output frequence, can realize the square -wave output with lower cost.
Description
Technical field
The utility model relates to oscillating circuit technical field, particularly relates to a kind of oscillating circuit.
Background technology
For any one band limit network, if there is gain to be greater than the Frequency point of 0dB in its passband, so the output of this band limit network, input are connected by an all-pass network, adjusted by the phase place of all-pass network, with being connected when making to be greater than the Frequency point signal of 0dB for gain this band limit network, so will there is self-oscillation in this network, that is, input signal is not applied in the input port of network, its output just has amplitude, and the alternating signal that frequency is all very stable exports.
But current oscillating circuit, its circuit structure is complicated, and cost is high.
Utility model content
The purpose of this utility model is to provide a kind of oscillating circuit, and this oscillating circuit adopts the most frequently used reverse swing door device and resistance capacitance composition, and simplify circuit, cost is low, and it is convenient to realize, and changes output frequency convenient, can realize square wave export with lower cost.
For reaching this object, the utility model by the following technical solutions:
A kind of oscillating circuit, this oscillating circuit, comprising: clamp diode D, inverter A1, A2, A3, electric capacity C, resistance R1, R2; The negative pole of clamp diode D connects voltage source, the positive pole of clamp diode D connects the input of inverter A1 and one end of resistance R1, the other end of resistance R1 connects one end of electric capacity C and one end of resistance R2, the output of inverter A1 connects the input of inverter A2, the output of inverter A2 connects the input of inverter A3 and the other end of electric capacity C, and the output of inverter A3, the other end of resistance R2 connect the output of oscillating circuit.
Preferably, the voltage of described voltage source is+5V voltage.
Preferably, described inverter A1, A2, A3 are TTL inverter or CMOS inverter.
Preferably, resistance R1 is 10K Ω, and resistance R2 is 10K Ω, and electric capacity C is 0.1 μ F.
The beneficial effects of the utility model are: a kind of oscillating circuit, comprising: clamp diode D, inverter A1, A2, A3, electric capacity C, resistance R1, R2; The negative pole of clamp diode D connects voltage source, the positive pole of clamp diode D connects the input of inverter A1 and one end of resistance R1, the other end of resistance R1 connects one end of electric capacity C and one end of resistance R2, the output of inverter A1 connects the input of inverter A2, the output of inverter A2 connects the input of inverter A3 and the other end of electric capacity C, and the output of inverter A3, the other end of resistance R2 connect the output of oscillating circuit.The oscillating circuit that the utility model provides adopts the most frequently used reverse swing door device and resistance capacitance composition, and simplify circuit, cost is low, and it is convenient to realize, and changes output frequency convenient, can realize square wave export with lower cost.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of oscillating circuit that the utility model specific embodiment provides.
Fig. 2 is the time dependent oscillogram of voltage of a kind of oscillating circuit that the utility model specific embodiment provides.
Embodiment
The technical problem solved for making the utility model, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.
Please refer to Fig. 1 to Fig. 2, a kind of oscillating circuit, this oscillating circuit, comprising: clamp diode D, inverter A1, A2, A3, electric capacity C, resistance R1, R2; The negative pole of clamp diode D connects voltage source, the positive pole of clamp diode D connects the input of inverter A1 and one end of resistance R1, the other end of resistance R1 connects one end of electric capacity C and one end of resistance R2, the output of inverter A1 connects the input of inverter A2, the output of inverter A2 connects the input of inverter A3 and the other end of electric capacity C, and the output of inverter A3, the other end of resistance R2 connect the output of oscillating circuit.
Preferably, the voltage of described voltage source is+5V voltage.
Circuit diagram principle of the present utility model is:
Input voltage V3=V1-R1 × the i of inverter A1, the input current due to inverter is μ A rank, can equal V1 point current potential depending on V3 point current potential.V1 point current potential is electric capacity C both end voltage Vab and inverter A2 output voltage V2 sum, i.e. V1=Vab+V2.Circuit powers under initial conditions, and V3 is low level (being generally 0V), and V2 is low level, and V4 is high level (being generally 5V), then the output of V1=Vab+V2 (low level), inverter A3 is charged to electric capacity C by resistance R2; When V1 point charging potential reaches the input threshold values Vth of inverter, inverter A1, A2, A3 output switching activity, V2 is high level (being generally 5V), V4 is low level (being generally 0V), then V1=Vab+V2 (high level), electric capacity C are discharged by resistance R2 and inverter A3; When V1 point current potential discharges into the input threshold values Vtl of inverter, due to V3=V1, inverter A1, A2, A3 output switching activity, V2 is low level, and V3 is high level, then V1=Vab+V2 (low level), V1 point current potential over time as shown in Figure 2.This process is carried out repeatedly, then Ausgang (out) output duty cycle is the square wave of 50%.
Due to when V2 be high level (being generally 5V), V1=Vab+V2 (high level), V3=V1, then V3=Vab+V2 (high level), this current potential is just likely beyond the maximum input voltage that inverter is allowed, cause inverter to damage, clamp diode D can the current potential of clamper V3 effectively.Owing to adding clamp diode D, when V1=Vab+V2 (high level), the discharge loop of electric capacity C has two, article one, discharged by resistance R1, clamp diode D, article one, discharged by the output of resistance R2 and inverter A3, when the current potential of V1 point discharges into below the conducting voltage of 5V+ clamp diode, electric capacity C is only discharged to the output of inverter A3, until V1 point current potential is to below Vtl by resistance R2.
Preferably, described inverter A1, A2, A3 are TTL inverter or CMOS inverter.
Preferably, resistance R1 is 10K Ω, and resistance R2 is 10K Ω, and electric capacity C is 0.1 μ F, then the frequency that Ausgang (out) exports is about 100kHz, and the output cycle is about 10ms.Preferably, the parameter of resistance R2 and electric capacity C can be changed to change output frequency,
the value of resistance R1 is general identical with resistance R2.
A kind of oscillating circuit that the utility model provides, adopt the most frequently used reverse swing door device and resistance capacitance composition, simplify circuit, cost is low, and it is convenient to realize, and changes output frequency convenient, can realize square wave export with lower cost.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection range by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection range of the present utility model.
Claims (4)
1. an oscillating circuit, is characterized in that, comprising: clamp diode D, inverter A1, A2, A3, electric capacity C, resistance R1, R2; The negative pole of clamp diode D connects voltage source, the positive pole of clamp diode D connects the input of inverter A1 and one end of resistance R1, the other end of resistance R1 connects one end of electric capacity C and one end of resistance R2, the output of inverter A1 connects the input of inverter A2, the output of inverter A2 connects the input of inverter A3 and the other end of electric capacity C, and the output of inverter A3, the other end of resistance R2 connect the output of oscillating circuit.
2. oscillating circuit according to claim 1, is characterized in that, the voltage of described voltage source is+5V voltage.
3. oscillating circuit according to claim 1, is characterized in that, described inverter A1, A2, A3 are TTL inverter or CMOS inverter.
4. oscillating circuit according to claim 2, is characterized in that, resistance R1 is 10K Ω, and resistance R2 is 10K Ω, and electric capacity C is 0.1 μ F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521098575.8U CN205232174U (en) | 2015-12-25 | 2015-12-25 | Oscillating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521098575.8U CN205232174U (en) | 2015-12-25 | 2015-12-25 | Oscillating circuit |
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| Publication Number | Publication Date |
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| CN205232174U true CN205232174U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521098575.8U Expired - Fee Related CN205232174U (en) | 2015-12-25 | 2015-12-25 | Oscillating circuit |
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| CN (1) | CN205232174U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130391A (en) * | 2016-08-11 | 2016-11-16 | 苏州迈力电器有限公司 | There is the power supply UPS sinewave inverter of reverse connecting protection |
| CN106208779A (en) * | 2016-08-11 | 2016-12-07 | 苏州迈力电器有限公司 | Power supply sinewave inverter |
| CN106253731A (en) * | 2016-08-11 | 2016-12-21 | 苏州迈力电器有限公司 | Power supply UPS sinewave inverter |
| CN106301048A (en) * | 2016-08-11 | 2017-01-04 | 苏州迈力电器有限公司 | There is the power supply UPS sinewave inverter of filter function |
| CN110149105A (en) * | 2019-04-26 | 2019-08-20 | 成都锐成芯微科技股份有限公司 | RC oscillator and its overshoot method of adjustment |
| CN110689874A (en) * | 2019-09-06 | 2020-01-14 | Oppo广东移动通信有限公司 | Carrier circuit and directional sound production equipment |
-
2015
- 2015-12-25 CN CN201521098575.8U patent/CN205232174U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130391A (en) * | 2016-08-11 | 2016-11-16 | 苏州迈力电器有限公司 | There is the power supply UPS sinewave inverter of reverse connecting protection |
| CN106208779A (en) * | 2016-08-11 | 2016-12-07 | 苏州迈力电器有限公司 | Power supply sinewave inverter |
| CN106253731A (en) * | 2016-08-11 | 2016-12-21 | 苏州迈力电器有限公司 | Power supply UPS sinewave inverter |
| CN106301048A (en) * | 2016-08-11 | 2017-01-04 | 苏州迈力电器有限公司 | There is the power supply UPS sinewave inverter of filter function |
| CN110149105A (en) * | 2019-04-26 | 2019-08-20 | 成都锐成芯微科技股份有限公司 | RC oscillator and its overshoot method of adjustment |
| CN110689874A (en) * | 2019-09-06 | 2020-01-14 | Oppo广东移动通信有限公司 | Carrier circuit and directional sound production equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 |
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| CF01 | Termination of patent right due to non-payment of annual fee |