CN103532584A - Voltage-stabilizing circuit applied to frequency modulation interphone - Google Patents
Voltage-stabilizing circuit applied to frequency modulation interphone Download PDFInfo
- Publication number
- CN103532584A CN103532584A CN201210225652.6A CN201210225652A CN103532584A CN 103532584 A CN103532584 A CN 103532584A CN 201210225652 A CN201210225652 A CN 201210225652A CN 103532584 A CN103532584 A CN 103532584A
- Authority
- CN
- China
- Prior art keywords
- voltage
- triode
- circuit
- stabilizing circuit
- intercom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
The invention discloses a voltage-stabilizing circuit applied to a frequency modulation interphone. The voltage-stabilizing circuit is composed of a first triode, a first resistor, a first capacitor and a first voltage-stabilizing tube. A collector and an emitter of the first triode are respectively connected with a voltage input line and a voltage output line; two ends of the first resistor are respectively connected with the voltage input line and a base electrode of the first triode; one end of the first capacitor is connected to a circuit between the first resistor and a base electrode of the first triode and the other end is grounded; a cathode of the first voltage-stabilizing tube is connected to a circuit between the first resistor and a base electrode of the first triode; and an anode of the first voltage-stabilizing tube is grounded. With the structure, the voltage stabilizing function can be realized by the first resistor and the first triode. The voltage-stabilizing circuit has the simple structure; a few components are used; and the cost is low. Therefore, the interphone applying the voltage-stabilizing circuit can be popularized and applied beneficially.
Description
Technical field
The present invention relates to communication equipment field, specifically for the voltage stabilizing circuit of frequency-modulation intercom for use.
Background technology
In modern communications, intercom be a kind of closely, simple wireless transmission means of communication, because it does not need terminal and switch station, ground, support just can carry out effective mobile communication, so be loved by the people.Intercom can be divided into amplitude modulation and frequency modulation type modulation system, wherein, frequency-modulation intercom for use is to make the receive frequency of one group of intercom identical with the tranmitting frequency of another group intercom with tranmitting frequency by regulating frequency and receive frequency, thereby realizes the wireless communication facility of intercommunication function.Frequency-modulation intercom for use is widely used in the industries such as public security, civil aviaton, transportation, water conservancy, railway, manufacture, building, service, the place that especially cannot cover at network, and frequency-modulation intercom for use becomes the means of communication that people like.
In frequency-modulation intercom for use, be provided with many discrete elements, as triode, when mains fluctuations are large, in intercom, discrete component is responsive to change in voltage, and this will cause local circuit cisco unity malfunction in intercom.In order to prevent that circuit from affecting intercom work when fluctuation occurs cell voltage, in existing intercom, be all provided with pressurizer, by pressurizer, can well stablize the builtin voltage of intercom, but pressurizer ubiquity complex structure, use the defects such as components and parts are many, this has just increased the cost of intercom, and then has influence on applying of intercom.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, use components and parts few, save cost, and the voltage stabilizing circuit for frequency-modulation intercom for use of energy stabilized supply voltage.
Object of the present invention is achieved through the following technical solutions: for the voltage stabilizing circuit of frequency-modulation intercom for use, comprise the first triode, the first resistance, the first electric capacity and the first voltage-stabiliser tube, the collector and emitter of described the first triode is connected with respectively voltage input line and voltage output line, described the first resistance two ends are connected on voltage input line and the first transistor base, described first electric capacity one end is connected on the circuit between the first resistance and the first transistor base, its other end ground connection, described the first voltage-stabiliser tube negative pole is connected on the circuit between the first resistance and the first transistor base, the first voltage-stabiliser tube plus earth.When the present invention works, the input of voltage input line receiver voltage, voltage output line is by the Voltage-output after voltage stabilizing.
On described voltage output line, be connected with the second electric capacity, described the second electric capacity connects the other end ground connection of Voltage-output line end relatively.The second electric capacity of the present invention forms overvoltage protection electric capacity, thereby while further guaranteeing that the present invention works, voltage is stable.
Described the first triode is NPN triode.
While working for the voltage stabilizing circuit of frequency-modulation intercom for use, utilize the voltage clamping characteristic of voltage-stabiliser tube, when the reverse voltage of the first voltage-stabiliser tube reaches its breakdown voltage rating, the first voltage-stabiliser tube will there will be avalanche type conducting effect, thereby clamp the voltage on load voltage value, the present invention is amplified and is adjusted voltage by the first triode again, and then completes the voltage stabilizing requirement to power supply.
Compared with prior art, the present invention has following beneficial effect: the present invention includes the first triode, the first resistance, the first electric capacity and the first voltage-stabiliser tube, wherein, the first resistance two ends are connected on voltage input line and the first transistor base, first electric capacity one end is connected on the circuit between the first resistance and the first transistor base, its other end ground connection, the first voltage-stabiliser tube negative pole is connected on the circuit between the first resistance and the first transistor base, the first voltage-stabiliser tube plus earth, the present invention can realize voltage stabilizing by the first voltage-stabiliser tube and the first triode, the present invention uses element few, overall structure is simple, cost is low, and then be conducive to applying of intercom.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
In accompanying drawing, the corresponding name of Reference numeral is called: R1-the first resistance, C1-the first electric capacity, C2-the first electric capacity, VD1-the first voltage-stabiliser tube, 1-voltage input line, 2-voltage output line.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment:
As shown in Figure 1, voltage stabilizing circuit for frequency-modulation intercom for use, comprise the first triode Q1, the first resistance R 1, the first capacitor C 1, the second capacitor C 2 and the first voltage-stabiliser tube VD1, wherein, the first triode Q1 is NPN triode, the collector electrode of the first triode Q1 is connected with voltage input line 1, and its emitter is connected with voltage output line 2.The first resistance R 1 two ends are connected in voltage input line 1 and the first triode Q1 base stage, and first capacitor C 1 one end is connected on the circuit between the first resistance R 1 and the first triode Q1 base stage, its other end ground connection.The first voltage-stabiliser tube VD1 negative pole is connected on the circuit between the first resistance R 1 and the first triode Q1 base stage, the first voltage-stabiliser tube VD1 plus earth.Second capacitor C 2 one end are connected on voltage output line 2, and the second capacitor C 2 connects the other end ground connection of voltage output line 2 ends relatively.
Voltage stabilizing circuit operation principle for frequency-modulation intercom for use: voltage is from voltage input line 1 input, if act on voltage on the first voltage-stabiliser tube VD1 higher than the first voltage-stabiliser tube VD1 breakdown voltage rating, input voltage after the first triode Q1 amplifies from voltage output line 2 outputs.
As mentioned above, can well realize the present invention.
Claims (3)
1. for the voltage stabilizing circuit of frequency-modulation intercom for use, it is characterized in that: comprise the first triode (Q1), the first resistance (R1), the first electric capacity (C1) and the first voltage-stabiliser tube (VD1), the collector and emitter of described the first triode (Q1) is connected with respectively voltage input line (1) and voltage output line (2), described the first resistance (R1) two ends are connected in voltage input line (1) and the first triode (Q1) base stage, described the first electric capacity (C1) one end is connected on the circuit between the first resistance (R1) and the first triode (Q1) base stage, its other end ground connection, described the first voltage-stabiliser tube (VD1) negative pole is connected on the circuit between the first resistance (R1) and the first triode (Q1) base stage, the first voltage-stabiliser tube (VD1) plus earth.
2. the voltage stabilizing circuit for frequency-modulation intercom for use according to claim 1, is characterized in that: on described voltage output line (2), be connected with the second electric capacity (C2), described the second electric capacity (C2) connects the other end ground connection of voltage output line (2) end relatively.
3. the voltage stabilizing circuit for frequency-modulation intercom for use according to claim 1 and 2, is characterized in that: described the first triode (Q1) is NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210225652.6A CN103532584A (en) | 2012-07-03 | 2012-07-03 | Voltage-stabilizing circuit applied to frequency modulation interphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210225652.6A CN103532584A (en) | 2012-07-03 | 2012-07-03 | Voltage-stabilizing circuit applied to frequency modulation interphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103532584A true CN103532584A (en) | 2014-01-22 |
Family
ID=49934317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210225652.6A Pending CN103532584A (en) | 2012-07-03 | 2012-07-03 | Voltage-stabilizing circuit applied to frequency modulation interphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103532584A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079316A (en) * | 2014-07-20 | 2014-10-01 | 苏州塔可盛电子科技有限公司 | Novel frequency modulation interphone secondary voltage stabilizing circuit |
| CN108173426A (en) * | 2018-02-26 | 2018-06-15 | 广州金升阳科技有限公司 | A kind of start-up circuit of low conduction voltage drop |
| CN108173425A (en) * | 2018-02-26 | 2018-06-15 | 广州金升阳科技有限公司 | A kind of start-up circuit |
| CN108233693A (en) * | 2018-02-26 | 2018-06-29 | 广州金升阳科技有限公司 | A kind of start-up circuit of ultralow input voltage |
| CN109861514A (en) * | 2018-11-13 | 2019-06-07 | 广州金升阳科技有限公司 | A kind of starting control method and circuit |
| CN113067591A (en) * | 2019-12-31 | 2021-07-02 | 杭州三花研究院有限公司 | Communication control system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749551A (en) * | 2010-01-26 | 2010-06-23 | 海洋王照明科技股份有限公司 | Hand-operated rechargeable lamp |
| CN202679355U (en) * | 2012-07-03 | 2013-01-16 | 成都市宏山科技有限公司 | Voltage stabilizing circuit for frequency modulation interphone |
-
2012
- 2012-07-03 CN CN201210225652.6A patent/CN103532584A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749551A (en) * | 2010-01-26 | 2010-06-23 | 海洋王照明科技股份有限公司 | Hand-operated rechargeable lamp |
| CN202679355U (en) * | 2012-07-03 | 2013-01-16 | 成都市宏山科技有限公司 | Voltage stabilizing circuit for frequency modulation interphone |
Non-Patent Citations (1)
| Title |
|---|
| 于海勋,郑长明: "《高频电路实验与仿真》", 31 August 2005, 科学出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079316A (en) * | 2014-07-20 | 2014-10-01 | 苏州塔可盛电子科技有限公司 | Novel frequency modulation interphone secondary voltage stabilizing circuit |
| CN108173426A (en) * | 2018-02-26 | 2018-06-15 | 广州金升阳科技有限公司 | A kind of start-up circuit of low conduction voltage drop |
| CN108173425A (en) * | 2018-02-26 | 2018-06-15 | 广州金升阳科技有限公司 | A kind of start-up circuit |
| CN108233693A (en) * | 2018-02-26 | 2018-06-29 | 广州金升阳科技有限公司 | A kind of start-up circuit of ultralow input voltage |
| WO2019161709A1 (en) * | 2018-02-26 | 2019-08-29 | 广州金升阳科技有限公司 | Starting circuit with ultralow input voltage |
| CN109861514A (en) * | 2018-11-13 | 2019-06-07 | 广州金升阳科技有限公司 | A kind of starting control method and circuit |
| CN113067591A (en) * | 2019-12-31 | 2021-07-02 | 杭州三花研究院有限公司 | Communication control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103532584A (en) | Voltage-stabilizing circuit applied to frequency modulation interphone | |
| CN204795023U (en) | Bimodulus communication circuit based on low pressure power line and micropower are wireless | |
| CN202679355U (en) | Voltage stabilizing circuit for frequency modulation interphone | |
| CN206339892U (en) | A kind of power supply voltage control apparatus | |
| CN203984420U (en) | A kind of novel frequency-modulation intercom for use secondary voltage stabilizing circuit | |
| CN202679354U (en) | Frequency selector for frequency modulation interphone | |
| CN203827341U (en) | Low-voltage electric power carrier wave communication circuit | |
| CN204928129U (en) | A active power filter for post upper band voltage control function | |
| CN203193510U (en) | Flyback power supply circuit | |
| CN204810142U (en) | High frequency switching power supply's anti -jamming circuit | |
| CN209627042U (en) | Solar power system | |
| CN207409657U (en) | A kind of anti-interference antenna tuner | |
| CN103475317A (en) | Negative feedback amplifying circuit | |
| CN202679547U (en) | Signal input frequency selector for frequency modulation interphone | |
| CN204794004U (en) | Inductive current current foldback circuit among SVG | |
| CN204993046U (en) | Discharge circuit, power and display device | |
| CN103956928A (en) | Method for controlling voltage of direct current capacitors in double-output and three-switch-set MMC inverter | |
| CN202586965U (en) | Charge pump and transmitting device employing charge pump | |
| CN204497789U (en) | A kind of novel electric vehicle charging pile | |
| CN209170314U (en) | It is a kind of for minimizing the function discharge protection circuit of ODU transmission channel | |
| CN203251225U (en) | Bi-directional Buck converter | |
| CN207638651U (en) | Digital duplex communication transmission module | |
| CN203632624U (en) | Dynamic intelligent type mobile phone signal amplifier | |
| CN103532580A (en) | Frequency selector of frequency modulation interphone | |
| CN101551938B (en) | Voltage-current transformation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140122 |