CN202650234U - Current carrier control-based signal transmission device - Google Patents
Current carrier control-based signal transmission device Download PDFInfo
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- CN202650234U CN202650234U CN 201220183751 CN201220183751U CN202650234U CN 202650234 U CN202650234 U CN 202650234U CN 201220183751 CN201220183751 CN 201220183751 CN 201220183751 U CN201220183751 U CN 201220183751U CN 202650234 U CN202650234 U CN 202650234U
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Abstract
The utility model discloses a current carrier control-based signal transmission device, which comprises a power part and a signal processing part, wherein the power part inputs direct current of 110 V, is stabilized to be 30 V through a voltage stabilizing tube and is converted to be +5 V/-5 V through a pulse generator SE7555 chip; the voltage ripple is less than 50 mV; and power is supplied for an external sensor and an operational amplifier LM662. By using an analog mode, intermediate steps for signal processing are greatly reduced, so that the entire device is simple, small in interference and stable and reliable in work; according to the current carrier control-based signal transmission device, DC 110 V direct current power supply is adopted and is converted to be stable +5 V/-5 V through SE7555 conversion to provide power for the external sensor and the signal processing part; a high-temperature MOS (Metal Oxide Semiconductor) transistor is adopted, and an accurate current signal is provided for the signal processing part under an underground complex high-temperature environment; meanwhile, a generated current carrier signal is coupled to a main loop through the MOS transistor; and the current carrier control-based signal transmission device has the advantages of simple circuit, good anti-interference capacity, low failure rate and contribution to promotion and use.
Description
Technical field
The utility model relates to a kind of signal transmitting apparatus based on the electric current carrier Control, belongs to the signal transmission technology field.
Background technology
The voltage signal transmission is widely used in underground equipment data transfer system, in complex environment, in order to ensure the underground equipment normal operation, need to detect the duty of underground equipment, the most transmitting device adopts wireless and unibus mode, and there are a lot of shortcomings in such transmission mode:
The first, wireless transmission can be because the metal shell of equipment with signal shielding, makes the signal can't normal transmission in the environment of down-hole sealing.
The second, unibus transmission needs control chip that carrier wave is provided, and then by multiplier signal is processed, and the intermediate treatment link is more, and signal produces distortion easily.
The utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, provide a kind of and greatly reduced intermediate link that signal is processed, make whole system simple, disturb littlely, working stability is reliably based on the signal transmitting apparatus of electric current carrier Control.Adopt electric current carrier Control circuit, adopt the mode of simulation, greatly reduced the intermediate link that signal is processed, make whole system simple, disturb littlely, working stability is reliable
Technical solution of the present utility model is: a kind of signal transmitting apparatus based on the electric current carrier Control comprises power unit and signal processing; Described power unit comprises diode D1, D4, D7～D9, voltage stabilizing diode D2, D5, stabilivolt D3, capacitor C 1, C2, C4, C6, C7～C9, C11～C17, current-limiting resistance R1, resistance R 5, R6, pulse producer JP1, transformer T1, metal-oxide-semiconductor Q5, triode Q2, Q3 and three terminal regulator U1, diode D1 positive pole connects 110V power supply input anode, negative pole is connected with diode D4, the minus earth of diode D4, capacitor C 1 is connected with capacitor C 2 afterwards and diode D1, the branch circuit parallel connection of D4 series connection, voltage stabilizing diode D2 connects with voltage stabilizing diode D5 afterwards and capacitor C 4, capacitor C 6 parallel connections, voltage stabilizing diode D2, capacitor C 4, the common port of capacitor C 6 connects respectively 110V power supply input anode, the end of current-limiting resistance R1 is connected the end on former limit and is connected with transformer T1, capacitor C 7 is in parallel with capacitor C 8, its common port one end respectively with the other end of current-limiting resistance R1,4 pin of the positive pole of stabilivolt D3 and pulse producer JP1,8 pin connect, the other end of capacitor C 7 and capacitor C 8 common ports respectively with voltage stabilizing diode D5, capacitor C 4, the common port of C6, the negative pole of stabilivolt D3, one end of capacitor C 9 is connected 1 pin and is connected with pulse producer JP1, the other end of capacitor C 9 is connected with 2 pin of pulse producer JP1, one end of resistance R 5 is connected with 6 pin of pulse producer JP1, the other end respectively with 3 pin and the triode Q2 of pulse producer JP1, the base stage of Q3 connects, the collector of triode Q2 is connected with 8 pin of pulse producer JP1, the collector of triode Q3 is connected with 1 pin of pulse producer JP1, one end of resistance R 6 respectively with triode Q2, the emitter of Q3 connects, the other end is connected with the grid of metal-oxide-semiconductor Q5, diode D7 is in parallel with metal-oxide-semiconductor Q5, the other end on the former limit of transformer T1 is connected with the drain electrode of metal-oxide-semiconductor Q5, the first winding of transformer T1 is connected with the negative pole of diode D8, the second winding is connected with the positive pole of diode D9, capacitor C 11 is in parallel with C13, capacitor C 12, C14 is in parallel with C15, capacitor C 16 is in parallel with C17, capacitor C 11 and the public end of C13 are connected 1 pin with the positive pole of diode D8 respectively and are connected with three terminal regulator U1, capacitor C 11 and the public other end of C13 respectively with capacitor C 12, the public end of C14 and C15,2 pin of three terminal regulator U 1, the public end of capacitor C 16 and C17 and ground are connected and export-5V, capacitor C 12, C14 is connected with the negative pole of diode D9 with the public other end of C15, and capacitor C 16 is connected with 3 pin of three terminal regulator U1 with the public other end of C 17 and exports+5V; Described signal processing comprises resistance R 2～R4, R7, R8, capacitor C 3, C5, C10, metal-oxide-semiconductor Q1, operational amplifier N3, voltage stabilizing diode D6 and current regulator diode Q4, Q6, external signal is input to the anode of operational amplifier N3 by capacitor C 10, capacitor C 10 other end ground connection, the negative terminal of operational amplifier N3 is connected with the end that resistance R 7 is connected with capacitor C respectively, power unit output-5V connects 4 pin of operational amplifier N3, power unit output+5V connects 8 pin of operational amplifier N3 and an end of resistance R 8, the output of operational amplifier N3 respectively with resistance R 8, the end that the other end of capacitor C 3 is connected with resistance R connects, the grid of metal-oxide-semiconductor Q1 respectively with the other end of resistance R 4, one end of capacitor C 5 is connected positive pole and is connected with voltage stabilizing diode D6, the minus earth of voltage stabilizing diode D6, the drain electrode of metal-oxide-semiconductor Q1 is connected with 1 pin of pulse producer JP1, the source electrode of metal-oxide-semiconductor Q1 respectively with an end of resistance R 3, current regulator diode Q4, the negative pole of Q6 connects, the other end ground connection of resistance R 3, current regulator diode Q4, the positive pole of Q6 is connected with an end of resistance R 2, and the other end of resistance R 2 is connected with the negative pole of voltage stabilizing diode D5.
Described pulse producer JP1 adopts the SE7555 chip.
Described metal-oxide-semiconductor Q1 adopts IRF3215, and metal-oxide-semiconductor Q5 adopts RF1N20.
Described operational amplifier N3 adopts the LM662 chip.
Described three terminal regulator U1 adopts LP2950AC.
The utility model compared with prior art has following advantage:
(1) the utility model adopts the mode of simulation, has greatly reduced the intermediate link that signal is processed, and makes whole device simple, disturbs littlely, and working stability is reliable;
(2) the utility model adopts DC110V direct current supply, is transformed to stable+5V/-5V through SE7555, is external sensor and signal processing power supply;
(3) metal-oxide-semiconductor of the high temperature of the utility model employing, in the environment of the complicated high temperature in down-hole, for signal processing provides accurately current signal, produced simultaneously electric current carrier signal is coupling in the major loop by metal-oxide-semiconductor, circuit is simple, anti-interference is good, and failure rate is low is conducive to promote the use of.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below just by reference to the accompanying drawings the utility model is done further introduction.
The utility model as shown in Figure 1, comprise power unit and signal processing, power unit input direct-current 110V, be stabilized in 30V by the stabilivolt voltage stabilizing, be transformed to+5V/-5V through pulse producer SE7555 chip, voltage ripple is external sensor and operational amplifier LM662 chip power supply less than 50mV.
Power unit comprises diode D1, D4, D7～D9, voltage stabilizing diode D2, D5, stabilivolt D3, capacitor C 1, C2, C4, C6, C7～C9, C11～C17, current-limiting resistance R1, resistance R 5, R6, pulse producer JP1, transformer T1, metal-oxide-semiconductor Q5, triode Q2, Q3 and three terminal regulator U1.Diode D1, D4 adopt 1V5KE, capacitor C 1, C2, C4, C6, C7～C9, C11～C17 adopt the tantalum electrochemical capacitor, voltage stabilizing diode D2, D5 adopt IN5253B, stabilivolt D3 adopts the stabilivolt of 5.6V, and metal-oxide-semiconductor Q5 adopts RF1N20, and pulse producer JP1 adopts the SE7555 chip, triode Q2 is the triode of NPN, triode Q3 is the triode of PNP, and diode D7, D8, D9 adopt IN4007, and three terminal regulator U1 adopts LP2950AC.
Diode D1, the D4 series connection, capacitor C 1, the C2 series connection, right latter two branch circuit parallel connection, give 110V filtering, voltage stabilizing diode D2, the D5 series connection, with C4, C6 is in parallel, voltage from 110V intercepting 30V, be connected with 5.6V stabilivolt D3 by current-limiting resistance R1, capacitor C 7, C8 is connected with 8 pin of pulse producer JP1, the power supply of 5V is provided for JP1, while D5, C4, C6, D3, C7,1 pin (GND) that the other end of C8 links together with JP1 links together, C9, R5 provides oscillation frequency for JP1, C9 be connected with JP1 respectively the 2nd pin with is connected pin and connects, R5 be connected with JP1 respectively 6 pin with are connected pin and connect, output terminal 3 pin and the triode Q2 of JP1, Q3 connects, the base stage of two triodes links together, 8 pin of the collector of Q2 and JP1 connect together, and 1 pin of the collector of Q3 and JP1 connects together, and the emitter of resistance R 6 and two triodes links together, for Q5 provides driving voltage, diode D7 is in parallel with Q5, and for Q5 provides the effect of afterflow, an end on the former limit of transformer T1 is connected with the anode of input 110V, the other end on former limit is connected with the drain electrode of Q5, the first winding of transformer T1 is by D8, C11, C13 rectifying and wave-filtering, at process three terminal regulator U1, C16, C17 filtering output+5V, the second winding connects D9, C12, C14, the C15 rectifying and wave-filtering is directly exported.
The power unit principle of work:
Input voltage is DC110V, by diode D1, D4 and capacitor C 1, C2 carries out filtering, then by two voltage stabilizing diode D2, D5 intercepts the voltage of 30V to C4 from 110V, C6, carry out filtering, pass through again stabilivolt D3 and C7, C8 filtering, the operating voltage of 5V is provided for chip SE7555, wherein C9 and R5 make chip SE7555 produce the resonance frequency of 380K, the PWM of a fixed frequency 380K of the tripod of chip SE7555 (OUT) output, then by triode Q2, Q3 recommends amplification, provide driving voltage by resistance R 6 for metal-oxide-semiconductor RF1N20, diode D7 is the metal-oxide-semiconductor afterflow.The PWM that chip SE7555 produces has produced the square wave of a high frequency by metal-oxide-semiconductor, then enter transformer T1, produce the alternating current of a high frequency, by D7, D8 rectification output, wherein D7 produces is+DC voltage of 5V, carry out filtering by C11, C13, then pass through three terminal regulator U1, finally by crossing C16, C17 filtering output DC+5V, D8 produces is-DC voltage of 5V, directly export through C12, C14, C15.
Signal processing comprises resistance R 2～R4, R7, R8, capacitor C 3, C5, C10, metal-oxide-semiconductor Q1, operational amplifier N3, voltage stabilizing diode D6 and current regulator diode Q4, Q6.Operational amplifier N3A adopts the LM662 chip, and metal-oxide-semiconductor Q1 adopts IRF3215.
External signal SIGMAL is input to the anode (3 pin) of amplifier N3 by C10, R7, C3 connect the negative terminal (2 pin) of amplifier,-5V connects 4 pin of amplifier N3, + 5V connects 8 pin of N3, one termination of R8+5V, the output of another termination amplifier of R8, C3 (1 pin), R4, C5, D6, be connected with the grid of Q1, Q1 provides driving voltage for metal-oxide-semiconductor, the drain electrode of Q1 is connected with the GND of pulse producer JP1, and the source electrode of Q1 is connected with R3, then is connected with Q4, Q6, then be connected with power resistor R2, access at last the other end (the namely GND of JP1) of D5.
The signal processing principle of work:
Voltage signal converts current signal to: the voltage signal of sensor is inputted by C10; then enter the anode (3 pin) of amplifier chip LM662; the output of 1 pin and the living voltage signal of sensor signal of chip LM662; resistance R 7; R8 and capacitor C 3; C5 is operated in the negative feedback state; by R4 driven MOS pipe; metal-oxide-semiconductor is operated in linear condition; when the driving signal voltage is low; the electric current that flows through metal-oxide-semiconductor is just few; when the driving signal voltage is high; the electric current that flows through metal-oxide-semiconductor is just many; the size of electric current and the size of voltage are directly proportional, and resistance R 4 is in order to protect current regulator diode Q4; Q6, Q4; Q6 provides the voltage reference point of opening 0.8V for metal-oxide-semiconductor; D6 be the voltage stabilizing diode of 8.2V in order to protect metal-oxide-semiconductor, prevent that the driving voltage of metal-oxide-semiconductor is too high.
The unspecified part of the utility model belongs to general knowledge as well known to those skilled in the art.
Claims (5)
1. the signal transmitting apparatus based on the electric current carrier Control is characterized in that: comprise power unit and signal processing;
Described power unit comprises diode D1, D4, D7～D9, voltage stabilizing diode D2, D5, stabilivolt D3, capacitor C 1, C2, C4, C6, C7～C9, C11～C17, current-limiting resistance R1, resistance R 5, R6, pulse producer JP1, transformer T1, metal-oxide-semiconductor Q5, triode Q2, Q3 and three terminal regulator U1, diode D1 positive pole connects 110V power supply input anode, negative pole is connected with diode D4, the minus earth of diode D4, capacitor C 1 is connected with capacitor C 2 afterwards and diode D1, the branch circuit parallel connection of D4 series connection, voltage stabilizing diode D2 connects with voltage stabilizing diode D5 afterwards and capacitor C 4, capacitor C 6 parallel connections, voltage stabilizing diode D2, capacitor C 4, the common port of capacitor C 6 connects respectively 110V power supply input anode, the end of current-limiting resistance R1 is connected the end on former limit and is connected with transformer T1, capacitor C 7 is in parallel with capacitor C 8, its common port one end respectively with the other end of current-limiting resistance R1,4 pin of the positive pole of stabilivolt D3 and pulse producer JP1,8 pin connect, the other end of capacitor C 7 and capacitor C 8 common ports respectively with voltage stabilizing diode D5, capacitor C 4, the common port of C6, the negative pole of stabilivolt D3, one end of capacitor C 9 is connected 1 pin and is connected with pulse producer JP1, the other end of capacitor C 9 is connected with 2 pin of pulse producer JP1, one end of resistance R 5 is connected with 6 pin of pulse producer JP1, the other end respectively with 3 pin and the triode Q2 of pulse producer JP1, the base stage of Q3 connects, the collector of triode Q2 is connected with 8 pin of pulse producer JP1, the collector of triode Q3 is connected with 1 pin of pulse producer JP1, one end of resistance R 6 respectively with triode Q2, the emitter of Q3 connects, the other end is connected with the grid of metal-oxide-semiconductor Q5, diode D7 is in parallel with metal-oxide-semiconductor Q5, the other end on the former limit of transformer T1 is connected with the drain electrode of metal-oxide-semiconductor Q5, the first winding of transformer T1 is connected with the negative pole of diode D8, the second winding is connected with the positive pole of diode D9, capacitor C 11 is in parallel with C13, capacitor C 12, C14 is in parallel with C15, capacitor C 16 is in parallel with C17, capacitor C 11 and the public end of C13 are connected 1 pin with the positive pole of diode D8 respectively and are connected with three terminal regulator U1, capacitor C 11 and the public other end of C13 respectively with capacitor C 12, the public end of C14 and C15,2 pin of three terminal regulator U1, the public end of capacitor C 16 and C17 and ground are connected and export-5V, capacitor C 12, C14 is connected with the negative pole of diode D9 with the public other end of C15, and capacitor C 16 is connected with 3 pin of three terminal regulator U1 with the public other end of C17 and exports+5V;
Described signal processing comprises resistance R 2～R4, R7, R8, capacitor C 3, C5, C10, metal-oxide-semiconductor Q1, operational amplifier N3, voltage stabilizing diode D6 and current regulator diode Q4, Q6, external signal is input to the anode of operational amplifier N3 by capacitor C 10, capacitor C 10 other end ground connection, the negative terminal of operational amplifier N3 is connected with the end that resistance R 7 is connected with capacitor C respectively, power unit output-5V connects 4 pin of operational amplifier N3, power unit output+5V connects 8 pin of operational amplifier N3 and an end of resistance R 8, the output of operational amplifier N3 respectively with resistance R 8, the end that the other end of capacitor C 3 is connected with resistance R connects, the grid of metal-oxide-semiconductor Q1 respectively with the other end of resistance R 4, one end of capacitor C 5 is connected positive pole and is connected with voltage stabilizing diode D6, the minus earth of voltage stabilizing diode D6, the drain electrode of metal-oxide-semiconductor Q1 is connected with 1 pin of pulse producer JP1, the source electrode of metal-oxide-semiconductor Q1 respectively with an end of resistance R 3, current regulator diode Q4, the negative pole of Q6 connects, the other end ground connection of resistance R 3, current regulator diode Q4, the positive pole of Q6 is connected with an end of resistance R 2, and the other end of resistance R 2 is connected with the negative pole of voltage stabilizing diode D5.
2. a kind of signal transmitting apparatus based on the electric current carrier Control according to claim 1 is characterized in that: described pulse producer JP1 employing SE7555 chip.
3. a kind of signal transmitting apparatus based on the electric current carrier Control according to claim 1 is characterized in that: described metal-oxide-semiconductor Q1 adopts IRF3215, and metal-oxide-semiconductor Q5 adopts RF1N20.
4. a kind of signal transmitting apparatus based on the electric current carrier Control according to claim 1 is characterized in that: described operational amplifier N3 employing LM662 chip.
5. a kind of signal transmitting apparatus based on the electric current carrier Control according to claim 1 is characterized in that: described three terminal regulator U1 employing LP2950AC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220183751 CN202650234U (en) | 2012-04-27 | 2012-04-27 | Current carrier control-based signal transmission device |
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| CN 201220183751 CN202650234U (en) | 2012-04-27 | 2012-04-27 | Current carrier control-based signal transmission device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078493A (en) * | 2013-01-18 | 2013-05-01 | 广州金升阳科技有限公司 | Boosted circuit |
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2012
- 2012-04-27 CN CN 201220183751 patent/CN202650234U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078493A (en) * | 2013-01-18 | 2013-05-01 | 广州金升阳科技有限公司 | Boosted circuit |
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Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |