CN203851125U - TTL electric level signal to difference electric level signal amplification circuit - Google Patents
TTL electric level signal to difference electric level signal amplification circuit Download PDFInfo
- Publication number
- CN203851125U CN203851125U CN201420085762.1U CN201420085762U CN203851125U CN 203851125 U CN203851125 U CN 203851125U CN 201420085762 U CN201420085762 U CN 201420085762U CN 203851125 U CN203851125 U CN 203851125U
- Authority
- CN
- China
- Prior art keywords
- level signal
- resistance
- ttl
- triode
- current
- 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.)
- Expired - Fee Related
Links
Landscapes
- Amplifiers (AREA)
Abstract
A TTL electric level signal to difference electric level signal amplification circuit comprising a first power source, a second power source, an analogue switch device N1, a current-limiting resistor R1 and a TTL signal amplification circuit, wherein the first power source and the second power source are connected at a switch selecting end of the analogue switch device N1, input TTL signals are connected to an enabled strobing end of the analogue switch device N1, a switch output end of the analogue switch device N1 is connected with the current-limiting resistor R1 in series, and the current-limiting resistor R1 is connected with the TTL signal amplifying circuit. The TTL electric level signal to difference electric level signal amplification circuit is advantaged by simple structure, stable output signals, small jitter, good performance, high reliability and the like. The TTL signals are amplified to such a degree that energy needed by a system is achieved, the signals are used as control or driving signals that are output outward through a diode, the phenomenon that excessive reverse direction impact is generated by a load in abnormal conditions can be prevented, equipment impact can be eliminated or adverse influence exerted on each other can be eliminated, abnormal system reset can be prevented, and operating safety can be improved.
Description
Technical field
The utility model relates to optical communication technique field, especially relates to a kind of Transistor-Transistor Logic level signal slip minute level signal amplifying circuit.
Background technology
Differential signal is paired appearance, acts on two conductors, and the voltage difference between these two conductors, is the useful signal value of circuit.Use the beneficial effect of differential signal to be: can be by controlling reference voltage, identification small-signal; When there being interference signal, can produce identical interference to two input signals, poor by the two, interference signal be effectively input as zero, reached the object of anti-common mode disturbances.Current, digital signaling system adopts the work of TTL level mostly, when requiring to be output as differential signal, and the level that must be just differential signal by TTL level conversion.Because the energy of input signal is generally all fainter, be not enough to promote load, at this moment just must provide in addition an energy, and control this energy by the less input signal of energy, make it the energy that output is larger, then drive load.
Summary of the invention
The utility model object is to overcome the deficiencies in the prior art, and a kind of Transistor-Transistor Logic level signal slip minute level signal amplifying circuit is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of Transistor-Transistor Logic level signal slip minute level signal amplifying circuit, comprises the first power supply, second source, analog switch device N1, current-limiting resistance R1, TTL signal amplification circuit; Wherein the first power supply and second source are connected in the switch selecting side of analog switch device N1, and what the TTL signal of input was connected in analog switch N1 enables gating end; The output switching terminal serial connection current-limiting resistance R1 of described analog switch N1, this current-limiting resistance R1 is connected with TTL signal amplification circuit; Described TTL signal amplification circuit comprises cascode collector, diode D1, power supply altogether, and described cascode altogether collector is connected with diode D1, and power supply is total to collector with cascode and is connected.
As preferably, described cascode is collector altogether, comprises current-limiting resistance R1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, triode V1, triode V2; One end of described current-limiting resistance R1 is as input, and the other end is connected with triode V1 base stage; Described triode V1 base stage is connected with ground through resistance R 2, the direct ground connection of its emitter.
As preferably, described triode V1 collector electrode is connected with triode V2 base stage, and via resistance R 4 ground connection.
As preferably, described triode V2 emitter and resistance R 5 one end, diode D1 anodic bonding, the other end ground connection of resistance R 5.
As preferably, described triode V1 collector electrode is connected with power supply by resistance R 3, and triode V2 collector electrode is directly connected with power supply; Diode D1 negative electrode is as output.
The utlity model has simple in structure, save that hardware resource, stable output signal, shake are little, functional, high reliability.By suitable selection analog switch device, reach one or more output, use the features such as flexible.TTL signal is amplified to the needed energy of system, then using this signal as controlling or drive signal, via diode, outwards export, prevent that under abnormal condition, load produces excessive reverse impact, the impact of abatement apparatus or produce mutually harmful effect, improves the fail safe of the undesired reset of anti-locking system and work.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described in detail.
Fig. 1 is schematic block circuit diagram of the present utility model.As shown in Figure 1, the slip of a kind of Transistor-Transistor Logic level signal divides level signal amplifying circuit, mainly the first power supply, second source, analog switch device N1, current-limiting resistance R1, TTL signal amplification circuit etc., consists of; Wherein the first power supply and second source are connected in the switch selecting side of analog switch device N1, and what the TTL signal of input was connected in analog switch N1 enables gating end; The output switching terminal serial connection current-limiting resistance R1 of described analog switch N1, this current-limiting resistance R1 is connected with TTL signal amplification circuit; Described TTL signal amplification circuit comprises cascode collector, diode D1, power supply altogether, and described cascode altogether collector is connected with diode D1, and power supply is total to collector with cascode and is connected.
Cascode is collector altogether, comprises current-limiting resistance R1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, triode V1, triode V2; One end of described current-limiting resistance R1 is as input, and the other end is connected with triode V1 base stage; Described triode V1 base stage is connected with ground through resistance R 2, the direct ground connection of its emitter; Described triode V1 collector electrode is connected with triode V2 base stage, and via resistance R 4 ground connection; Triode V2 emitter and resistance R 5 one end, diode D1 anodic bonding, the other end ground connection of resistance R 5; Triode V1 collector electrode is connected with power supply by resistance R 3, and triode V2 collector electrode is directly connected with power supply; Diode D1 negative electrode is as output.Triode V1, resistance R 1, resistance R 2, resistance R 3 form total radio amplifier; Triode V2, resistance R 4, resistance R 5 form common-collector amplifier.
The utility model is amplified to the needed energy of system by TTL signal, then using this signal as controlling or drive signal, via diode, outwards export, prevent that under abnormal condition, load produces excessive reverse impact, the impact of abatement apparatus or produce mutually harmful effect, improves the fail safe of the undesired reset of anti-locking system and work.
Above-described embodiment is only this practical new technical conceive of explanation and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.Therefore, the utility model is not limited to embodiment disclosed and described above, to modifications and changes more of the present utility model, also should fall in the protection range of claim of the present utility model.
Claims (5)
1. the slip of Transistor-Transistor Logic level signal divides a level signal amplifying circuit, comprises the first power supply, second source, analog switch device N1, current-limiting resistance R1, TTL signal amplification circuit; It is characterized in that, described the first power supply and second source are connected in the switch selecting side of analog switch device N1, and what the TTL signal of input was connected in analog switch N1 enables gating end; The output switching terminal serial connection current-limiting resistance R1 of described analog switch N1, this current-limiting resistance R1 is connected with TTL signal amplification circuit; Described TTL signal amplification circuit comprises cascode collector, diode D1, power supply altogether, and described cascode altogether collector is connected with diode D1, and power supply is total to collector with cascode and is connected.
2. a kind of Transistor-Transistor Logic level signal according to claim 1 slip divides level signal amplifying circuit, it is characterized in that, described cascode is collector altogether, comprises current-limiting resistance R1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, triode V1, triode V2; One end of described current-limiting resistance R1 is as input, and the other end is connected with triode V1 base stage; Described triode V1 base stage is connected with ground through resistance R 2, the direct ground connection of its emitter.
3. a kind of Transistor-Transistor Logic level signal according to claim 2 slip divides level signal amplifying circuit, it is characterized in that, described triode V1 collector electrode is connected with triode V2 base stage, and via resistance R 4 ground connection.
4. a kind of Transistor-Transistor Logic level signal according to claim 2 slip divides level signal amplifying circuit, it is characterized in that, described triode V2 emitter and resistance R 5 one end, diode D1 anodic bonding, the other end ground connection of resistance R 5.
5. a kind of Transistor-Transistor Logic level signal according to claim 2 slip divides level signal amplifying circuit, it is characterized in that, described triode V1 collector electrode is connected with power supply by resistance R 3, and triode V2 collector electrode is directly connected with power supply; Diode D1 negative electrode is as output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085762.1U CN203851125U (en) | 2014-02-27 | 2014-02-27 | TTL electric level signal to difference electric level signal amplification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085762.1U CN203851125U (en) | 2014-02-27 | 2014-02-27 | TTL electric level signal to difference electric level signal amplification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203851125U true CN203851125U (en) | 2014-09-24 |
Family
ID=51564091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085762.1U Expired - Fee Related CN203851125U (en) | 2014-02-27 | 2014-02-27 | TTL electric level signal to difference electric level signal amplification circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203851125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953422A (en) * | 2021-04-19 | 2021-06-11 | 中国科学院长春光学精密机械与物理研究所 | Power amplifier and integrated piezoelectric ceramic driver |
-
2014
- 2014-02-27 CN CN201420085762.1U patent/CN203851125U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953422A (en) * | 2021-04-19 | 2021-06-11 | 中国科学院长春光学精密机械与物理研究所 | Power amplifier and integrated piezoelectric ceramic driver |
| CN112953422B (en) * | 2021-04-19 | 2023-02-10 | 中国科学院长春光学精密机械与物理研究所 | Power amplifier and integrated piezoelectric ceramic driver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203352423U (en) | Switching tube driving amplifying circuit for switching power supply | |
| CN102361319B (en) | IGBT (Insulated Gate Bipolar Translator) short circuit protection detection circuit based on driving chip | |
| CN203851125U (en) | TTL electric level signal to difference electric level signal amplification circuit | |
| CN204192593U (en) | A kind of pulses measure circuit and apply its Wearable pulse measurer | |
| CN203747395U (en) | Temperature protection circuit applied to LED current ripple eliminating circuit | |
| CN106888022A (en) | A kind of high-resolution current/frequency conversion circuit | |
| CN206023185U (en) | A kind of electric motor protecting control circuit | |
| CN204408679U (en) | A kind of light-operated lighting controller for mobile phone | |
| CN205141638U (en) | Switching power supply output short circuit disconnection protection circuit | |
| CN204668912U (en) | A kind of protective circuit | |
| CN104793679A (en) | Programmable high-voltage source device | |
| CN204517360U (en) | Excess voltage protection | |
| CN204425315U (en) | A kind of photoisolator | |
| CN204595661U (en) | A kind of high voltage source device able to programme | |
| CN205154714U (en) | Report an emergency and ask for help or increased vigilance signal generator means | |
| CN204244103U (en) | With the power-supply system of temperature sensing circuit | |
| CN203504157U (en) | IGBT protection circuit | |
| CN203851014U (en) | Switching-on driving circuit | |
| CN203434937U (en) | High voltage generator with feedback devices | |
| CN203934071U (en) | A kind of transmitting illuminant control circuit | |
| CN206461581U (en) | Sensor filter amplification circuit | |
| CN202363953U (en) | Constant current control circuit | |
| CN203180886U (en) | Constant power ultrasonic oscillator with water shortage protection function | |
| CN101997296A (en) | Simple over-voltage protection device circuit | |
| CN204206132U (en) | Pulse signal transmission modulate circuit |
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: 20140924 Termination date: 20200227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |