CN104852710A - Oscillation signal generation circuit and method - Google Patents
Oscillation signal generation circuit and method Download PDFInfo
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- CN104852710A CN104852710A CN201510310769.8A CN201510310769A CN104852710A CN 104852710 A CN104852710 A CN 104852710A CN 201510310769 A CN201510310769 A CN 201510310769A CN 104852710 A CN104852710 A CN 104852710A
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- triode
- electric capacity
- oscillator signal
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- generative circuit
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Abstract
The invention discloses an oscillation signal generation circuit, and relates to the field of signal generation devices. The circuit comprises a first resistor, a first capacitor, and a triode. One end of the first resistor is connected with the first capacitor and the base electrode of the triode. The other end of the first capacitor is connected with the collector electrode of the triode, and the emitter electrode of the triode is connected with a reference voltage. The other end of the first resistor serves as an input end of the circuit, and the collector electrode of the triode serves as the output end of the circuit. The circuit also comprises a DC power supply and a key switch. The DC power supply is in series connection with the key switch and the collector electrode of the triode. The objective of the invention lies in providing the oscillation signal generation circuit and an oscillation signal generation method, so as to reduce the power consumption of a conventional oscillation circuit.
Description
Technical field
The present invention relates to signal generation apparatus field, in particular to a kind of oscillator signal generative circuit and method.
Background technology
In recent years along with the continuous appearance of areas of information technology new technology and the continuous progress of technique, the limited application scenario of various power consumption all needs the wake-up circuit adopting low-power consumption, and wake-up circuit needs to provide the clock circuit that can detect current output signal frequency, and require that this clock circuit can cover enough wide scope, ensure can regulate at temperature and technique change and change in voltage condition.
As everyone knows, short distance radio communication system is in order to improve portability and the flexibility of system, all adopt powered battery, time this supply power mode requires that wireless communication chips is normal, major part is idle, communicated with outside by built-in wake-up circuit, wake whole chip up by inner wake-up circuit more if needed and carry out signal transacting, wake-up circuit needs simply to process input signal, especially need to determine the frequency whether frequency of current input signal is required, this processing mode just needs chip or outside to provide a reference clock circuit to compare, if adopt outside clock circuit or crystal oscillating circuit will increase a lot of power consumption, nor be beneficial to miniaturization and the integrated level of whole system.
Summary of the invention
The object of the present invention is to provide a kind of oscillator signal generative circuit and method, to reduce the power consumption of existing oscillating circuit.
First aspect, a kind of oscillator signal generative circuit that the embodiment of the present invention provides, comprise: the first resistance, first electric capacity and triode, one end of described first resistance is connected with the base stage of described first electric capacity and described triode respectively, the other end of described first electric capacity is connected with the collector electrode of described triode, the emitter of described triode connects reference voltage, the other end of described first resistance is the input of described oscillator signal generative circuit, the output of the very described oscillator signal generative circuit of current collection of described triode, also comprise DC power supply and key switch, described DC power supply described key switch of connecting is connected with the collector electrode of described triode.
In conjunction with first aspect, the embodiment of the present invention additionally provides the first possibility execution mode of first aspect, wherein, also comprises: the second electric capacity;
The output of the very described oscillator signal generative circuit of current collection of described triode, comprising:
The collector electrode of described triode is connected with one end of described second electric capacity, and the other end of described second electric capacity is the output of described oscillator signal generative circuit.
In conjunction with the first possibility execution mode of first aspect, the embodiment of the present invention additionally provides the second possibility execution mode of first aspect, wherein, also comprises inductance, is inductively coupled to the collector electrode of described triode described in described DC power supply series connection.
In conjunction with the second possibility execution mode of first aspect, the embodiment of the present invention additionally provides the third possibility execution mode of first aspect, wherein, also comprises the 3rd resistance;
The other end of described first electric capacity is connected with the collector electrode of described triode, comprising: described 3rd resistively couple of the other end of described first electric capacity series connection is to the collector electrode of described triode.
In conjunction with the third possibility execution mode of first aspect, the embodiment of the present invention additionally provides the 4th kind of possibility execution mode of first aspect, and wherein, described 3rd resistance is variable resistor.
In the embodiment of the present invention, during described oscillator signal generative circuit work, push button switch, make the collector electrode conducting of described DC power supply and described triode, the input of described oscillator signal generative circuit inputs the pulse signal of certain duty ratio, when pulse is low level, triode ends, described power supply is described first capacitor charging, when pulse is high level, triode ON, now the output of described oscillator signal generative circuit is low level, because the electromotive force of the node of the collector electrode of described triode is dragged down, described first electric capacity outwards discharges, the electric capacity of described first electric capacity flows to earth terminal through the base stage of triode, now pulse transfers low level to, the base stage of triode is before the electric charge release of the first electric capacity terminates, still conducting, therefore the first resistance and the first electric capacity constitute an oscillating circuit, the output outputting oscillation signal of described oscillator signal generative circuit.
When the described oscillator signal generative circuit of closedown, push button switch, and stop the described pulse of input, the base stage of described triode is continuously low level, thus the output of described oscillator signal generative circuit is continuously low level, effectively can reduce stand-by power consumption.
Other features and advantages of the present invention are set forth at specification subsequently, and, partly become apparent from specification, or understand by implementing the embodiment of the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.Shown in accompanying drawing, above-mentioned and other object of the present invention, Characteristics and advantages will be more clear.Reference numeral identical in whole accompanying drawing indicates identical part.Deliberately do not draw accompanying drawing by actual size equal proportion convergent-divergent, focus on purport of the present invention is shown.
Fig. 1 shows the circuit theory diagrams of a kind of oscillator signal generative circuit that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In recent years along with the continuous appearance of areas of information technology new technology and the continuous progress of technique, the limited application scenario of various power consumption all needs the wake-up circuit adopting low-power consumption, and wake-up circuit needs to provide the clock circuit that can detect current output signal frequency, and require that this clock circuit can cover enough wide scope, ensure can regulate at temperature and technique change and change in voltage condition.
As everyone knows, short distance radio communication system is in order to improve portability and the flexibility of system, all adopt powered battery, time this supply power mode requires that wireless communication chips is normal, major part is idle, communicated with outside by built-in wake-up circuit, wake whole chip up by inner wake-up circuit more if needed and carry out signal transacting, wake-up circuit needs simply to process input signal, especially need to determine the frequency whether frequency of current input signal is required, this processing mode just needs chip or outside to provide a reference clock circuit to compare, if adopt outside clock circuit or crystal oscillating circuit will increase a lot of power consumption, nor be beneficial to miniaturization and the integrated level of whole system.
A kind of oscillator signal generative circuit that the embodiment of the present invention provides, comprise: the first resistance R8, first electric capacity C30 and triode Q2, one end of described first resistance R8 is connected with the base stage of described first electric capacity C30 and described triode Q2 respectively, the other end of described first electric capacity C30 is connected with the collector electrode of described triode Q2, the emitter of described triode Q2 connects reference voltage, the other end of described first resistance R8 is the input of described oscillator signal generative circuit, the output of the very described oscillator signal generative circuit of current collection of described triode Q2, also comprise DC power supply and key switch, described DC power supply described key switch of connecting is connected with the collector electrode of described triode Q2.
Wherein, also comprise: the second electric capacity C36;
The output of the very described oscillator signal generative circuit of current collection of described triode Q2, comprising:
The collector electrode of described triode Q2 is connected with one end of described second electric capacity C36, and the other end of described second electric capacity C36 is the output of described oscillator signal generative circuit.
Wherein, also comprise inductance L 9, described DC power supply described inductance L 9 of connecting is coupled to the collector electrode of described triode Q2.
Wherein, the 3rd resistance is also comprised;
The other end of described first electric capacity C30 is connected with the collector electrode of described triode Q2, comprising: described 3rd resistively couple of the other end of described first electric capacity C30 series connection is to the collector electrode of described triode Q2.
Wherein, described 3rd resistance is variable resistor.
In the embodiment of the present invention, during described oscillator signal generative circuit work, push button switch, make the collector electrode conducting of described DC power supply and described triode Q2, the input of described oscillator signal generative circuit inputs the pulse signal of certain duty ratio, when pulse is low level, triode Q2 ends, described power supply is that described first electric capacity C30 charges, when pulse is high level, triode Q2 conducting, now the output of described oscillator signal generative circuit is low level, because the electromotive force of the node of the collector electrode of described triode Q2 is dragged down, described first electric capacity C30 outwards discharges, the electric capacity of described first electric capacity C30 flows to earth terminal through the base stage of triode Q2, now pulse transfers low level to, the base stage of triode Q2 is before the electric charge release of the first electric capacity C30 terminates, still conducting, therefore the first resistance R8 and the first electric capacity C30 constitutes an oscillating circuit, the output outputting oscillation signal of described oscillator signal generative circuit.
When the described oscillator signal generative circuit of closedown, push button switch, and stop the described pulse of input, the base stage of described triode Q2 is continuously low level, thus the output of described oscillator signal generative circuit is continuously low level, effectively can reduce stand-by power consumption.
In several embodiments that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.Device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, again such as, multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some communication interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.
If described function using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (5)
1. an oscillator signal generative circuit, it is characterized in that, comprise: the first resistance, first electric capacity and triode, one end of described first resistance is connected with the base stage of described first electric capacity and described triode respectively, the other end of described first electric capacity is connected with the collector electrode of described triode, the emitter of described triode connects reference voltage, the other end of described first resistance is the input of described oscillator signal generative circuit, the output of the very described oscillator signal generative circuit of current collection of described triode, also comprise DC power supply and key switch, described DC power supply described key switch of connecting is connected with the collector electrode of described triode.
2. oscillator signal generative circuit according to claim 1, is characterized in that, also comprise: the second electric capacity;
The output of the very described oscillator signal generative circuit of current collection of described triode, comprising:
The collector electrode of described triode is connected with one end of described second electric capacity, and the other end of described second electric capacity is the output of described oscillator signal generative circuit.
3. oscillator signal generative circuit according to claim 2, is characterized in that, also comprise inductance, is inductively coupled to the collector electrode of described triode described in described DC power supply series connection.
4. oscillator signal generative circuit according to claim 3, is characterized in that, also comprises the 3rd resistance;
The other end of described first electric capacity is connected with the collector electrode of described triode, comprising: described 3rd resistively couple of the other end of described first electric capacity series connection is to the collector electrode of described triode.
5. oscillator signal generative circuit according to claim 4, is characterized in that, described 3rd resistance is variable resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310769.8A CN104852710A (en) | 2015-06-09 | 2015-06-09 | Oscillation signal generation circuit and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310769.8A CN104852710A (en) | 2015-06-09 | 2015-06-09 | Oscillation signal generation circuit and method |
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| Publication Number | Publication Date |
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| CN104852710A true CN104852710A (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510310769.8A Pending CN104852710A (en) | 2015-06-09 | 2015-06-09 | Oscillation signal generation circuit and method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58194422A (en) * | 1982-05-07 | 1983-11-12 | Hitachi Ltd | Delay circuit |
| CN2804974Y (en) * | 2005-07-01 | 2006-08-09 | 章华通 | Roadblock flashing lamp |
| CN103701436A (en) * | 2012-09-27 | 2014-04-02 | 浙江大华技术股份有限公司 | External synchronous trigger signal generating method and equipment |
| CN204168261U (en) * | 2014-10-29 | 2015-02-18 | 吴圣铎 | 1KHz audio signal generator |
-
2015
- 2015-06-09 CN CN201510310769.8A patent/CN104852710A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58194422A (en) * | 1982-05-07 | 1983-11-12 | Hitachi Ltd | Delay circuit |
| CN2804974Y (en) * | 2005-07-01 | 2006-08-09 | 章华通 | Roadblock flashing lamp |
| CN103701436A (en) * | 2012-09-27 | 2014-04-02 | 浙江大华技术股份有限公司 | External synchronous trigger signal generating method and equipment |
| CN204168261U (en) * | 2014-10-29 | 2015-02-18 | 吴圣铎 | 1KHz audio signal generator |
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Application publication date: 20150819 |