CN106200715A - A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit - Google Patents
A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit Download PDFInfo
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- CN106200715A CN106200715A CN201610457812.8A CN201610457812A CN106200715A CN 106200715 A CN106200715 A CN 106200715A CN 201610457812 A CN201610457812 A CN 201610457812A CN 106200715 A CN106200715 A CN 106200715A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The invention discloses a kind of electronic temperature controller signal processing system based on full-bridge buffer circuit, it is characterized in that, mainly by processing chip U, polar capacitor C4, the advance signal amplifying circuit being connected with the IN pin processing chip U, the pulse shaper being connected with process chip U, the data signal output circuit being connected with pulse shaper, and the full-bridge buffer circuit composition being serially connected between the CM pin and the data signal output circuit that process chip U.The small-signal of temperature sensor output can be amplified by the present invention, improves the present invention accuracy to signal processing；And the present invention can make output signal keep consistent with the waveform of input signal, effectively ensure that signal output waveform does not haves distortion, ensures that temperature can be controlled by electronic temperature controller accurately.
Description
Technical field
The present invention relates to electronic applications, specifically, be a kind of electronic temperature controller based on full-bridge buffer circuit letter
Number processing system.
Background technology
Along with the development of science and technology, electronic temperature controller has been widely used in the middle of daily commercial production, for life
Product equipment, the temperature of environment detect and control, to improve production efficiency and product quality.But, existing electronic type temperature
The signal processing system that control device is used exists inaccurate to signal processing, easily makes the waveform of signal the problem of distortion occur,
Cause electronic temperature controller to control not accurate enough to temperature, have a strong impact on its control accuracy to temperature.
Therefore it provides a kind of electronic temperature controller signal processing system that can improve signal processing accuracy is when business
Anxious.
Summary of the invention
The signal processing system that it is an object of the invention to overcome electronic temperature controller of the prior art to be used exists
Defect inaccurate to signal processing, it is provided that a kind of based on full-bridge buffer circuit electronic temperature controller signal processing system
System.
The present invention is achieved through the following technical solutions: a kind of electronic temperature controller signal based on full-bridge buffer circuit
Processing system, mainly by processing chip U, is connected with the CF pin processing chip U after positive electrode resistance R6, negative pole is through resistance R11
The polar capacitor C4 being connected with the CM pin processing chip U afterwards, the advance signal being connected with the IN pin processing chip U is put
Big circuit, the pulse shaper being connected with process chip U, the data signal being connected with pulse shaper output electricity
Road, and the full-bridge buffer circuit composition being serially connected between the CM pin and the data signal output circuit that process chip U；Described place
The VS pin of reason chip U connects external power source.
Described full-bridge buffer circuit by amplifier P4, audion VT3, audion VT4, positive pole after resistance R19 with three poles
The base stage of pipe VT3 is connected, negative pole as full-bridge buffer circuit input and with the pole that is connected of CM pin processing chip U
Property electric capacity C10, N pole is connected with the colelctor electrode of audion VT3, P pole sequentially after inductance L2 and resistance R25 with amplifier P4's
The diode D7 that positive pole is connected, positive pole is connected with the junction point of inductance L2 with resistance R25, the output of negative pole and amplifier P4
Polar capacitor C13, the P pole that is connected of end negative pole with amplifier P4 after resistance R24 is connected, N pole is after adjustable resistance R26
The diode D8 being connected with the outfan of amplifier P4, positive pole is connected with the base stage of audion VT4, negative pole and diode D8
The polar capacitor C12 that is connected of P pole, one end is connected with the outfan of amplifier P4, the other end is negative with polar capacitor C12's
The resistance R23 that pole is connected, positive pole is connected with the colelctor electrode of audion VT4, polar capacitor C11, the P pole of minus earth is through electricity
Be connected with the positive pole of polar capacitor C10 after resistance R20, N pole negative pole with polar capacitor C11 after resistance R21 is connected two
Pole pipe D6, and the electricity that one end is connected with the emitter stage of audion VT3, the other end is connected with the emitter stage of audion VT4
Resistance R22 composition；The P pole of described diode D8 is connected with the negative pole of polar capacitor C11；The negative pole of described polar capacitor C12 connects
Ground；The outfan of described amplifier P4 as the outfan of full-bridge buffer circuit and is connected with data signal output circuit.
Described advance signal amplifying circuit is by amplifier P1, and positive pole is connected with the positive pole of amplifier P1, negative pole is as front
Putting the polar capacitor C11 of the input of signal amplification circuit, negative pole negative pole with amplifier P1 after resistance R1 is connected, positive pole
Sequentially through polar capacitor C2, P pole that resistance R3 outfan with amplifier P1 after resistance R4 is connected after resistance R2 with pole
The diode D1 that negative pole is connected, N pole is connected with the junction point of resistance R3 with resistance R4 of property electric capacity C2, and positive pole is through electricity
Be connected with the outfan of amplifier P1 after resistance R5, the polar capacitor C3 of minus earth forms；The outfan of described amplifier P1
As the outfan of advance signal amplifying circuit and it is connected with the IN pin processing chip U.
Described pulse shaper by audion VT1, audion VT2, N pole after resistance R8 with the current collection of audion VT1
The diode D2 that pole is connected, P pole is connected with the CC pin processing chip U after resistance R7, negative pole and the base of audion VT1
The polar capacitor C5 that pole is connected, positive pole is connected with the COM pin of process chip U, the emitter stage phase of negative pole and audion VT2
The polar capacitor C6 that connection, positive pole are connected with the OUT pin processing chip U after resistance R9, one end is with polar capacitor C6's
Resistance R10, the P pole that positive pole is connected, the other end is connected with the PWM pin of process chip U after adjustable resistance R15 with three poles
The colelctor electrode of pipe VT2 is connected, the emitter stage of N pole and audion VT2 be collectively forming pulse shaper outfan and with number
The diode D5 being connected according to signal output apparatus, and negative pole colelctor electrode with audion VT1 after inductance L1 is connected, just
The polar capacitor C9 composition that pole is connected with the P pole of diode D5 after resistance R16；The base stage of described audion VT2 and three poles
The emitter stage of pipe VT1 is connected.
Described data signal output circuit by amplifier P2, amplifier P3, P pole after resistance R14 with amplifier P2 just
The diode D3 that pole is connected, N pole positive pole with amplifier P3 after resistance R12 is connected, negative pole after resistance R13 with two poles
The polar capacitor C7 that the N pole of pipe D3 is connected, be connected with the outfan of amplifier P2 after positive electrode resistance R17, positive pole and amplification
The negative pole of device P3 is connected, the polar capacitor C8 of minus earth, and P pole is connected with the outfan of amplifier P3, N pole warp can
The diode D4 composition being connected with the outfan of amplifier P2 after adjusting resistance R18；The N pole of described diode D3 and amplifier P4
Outfan be connected；The minus earth of described amplifier P2, its positive pole are connected with the emitter stage of audion VT2, its output
After end is connected with the N pole of diode D5 and as the outfan of data signal output circuit.
For the practical effect of the present invention, described process chip U the most preferentially uses the integrated chip of AD736 to realize.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) small-signal of temperature sensor output can be amplified by the present invention, and the present invention can make output signal
Keep consistent with the waveform of input signal, thus improve the present invention accuracy to signal processing, effectively ensure that output
Signal waveform does not haves distortion.
(2) energy over-voltage suppression of the present invention and restriction voltage increase rate and formation electromagnetic interference, make the signal of telecommunication more
Stable and accurate, thus improve the present invention accuracy to signal processing.
(3) input signal can be converted to high-frequency signal or the low frequency signal of specific width by the present invention, makes the signal of signal
Ripple is more steady, thus improves the present invention accuracy to signal processing.
(4) the process chip of the present invention uses the integrated chip of AD736 to realize, and this process chip has stronger anti-interference
Ability, thus effectively ensure that the present invention accuracy to signal processing.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the full-bridge buffer circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As it is shown in figure 1, the present invention is mainly by processing chip U, it is connected with the CF pin processing chip U after positive electrode resistance R6
Connect, negative pole after resistance R11 with the polar capacitor C4 that is connected of CM pin processing chip U, with the IN pin phase processing chip U
The advance signal amplifying circuit connected, the pulse shaper being connected with process chip U, it is connected with pulse shaper
Data signal output circuit, and the full-bridge buffering being serially connected between the CM pin and the data signal output circuit that process chip U
Circuit forms；The VS pin of described process chip U connects external power source.
Wherein, described advance signal amplifying circuit is by amplifier P1, resistance R1, resistance R2, resistance R3, resistance R4, resistance
R5, polar capacitor C1, polar capacitor C2, polar capacitor C3, and diode D1 form.
During connection, the positive pole of polar capacitor C11 is connected with the positive pole of amplifier P1, its negative pole amplifies as advance signal
The input of circuit is also connected with temperature sensor.The negative pole of polar capacitor C2 after resistance R1 with the negative pole phase of amplifier P1
Connect, its positive pole is sequentially connected through resistance R3 outfan with amplifier P1 after resistance R4.The P pole of diode D1 is through resistance
After R2, the negative pole with polar capacitor C2 is connected, its N pole is connected with the junction point of resistance R3 with resistance R4.Polar capacitor C3's
Positive pole outfan with amplifier P1 after resistance R5 is connected, its minus earth.The outfan of described amplifier P1 is as front
Put the outfan of signal amplification circuit and be connected with the IN pin processing chip U.
Further, described pulse shaper by audion VT1, audion VT2, resistance R7, resistance R8, resistance R9,
Resistance R10, adjustable resistance R15, resistance R16, polar capacitor C5, polar capacitor C6, polar capacitor C9, diode D2, diode
D5, and inductance L1 composition.
During connection, the N pole of diode D2 colelctor electrode with audion VT1 after resistance R8 is connected, its P pole is through resistance R7
It is connected with the CC pin processing chip U afterwards.The negative pole of polar capacitor C5 is connected with the base stage of audion VT1, its positive pole with
The COM pin processing chip U is connected.The negative pole of polar capacitor C6 is connected with the emitter stage of audion VT2, its positive pole is through electricity
It is connected with the OUT pin processing chip U after resistance R9.One end of resistance R10 is connected with the positive pole of polar capacitor C6, its another
The PWM pin held and process chip U is connected.
Meanwhile, the P pole of diode D5 colelctor electrode with audion VT2 after adjustable resistance R15 be connected, its N pole and three
The emitter stage of pole pipe VT2 is collectively forming the outfan of pulse shaper and is connected with data signal output circuit.Polarity electricity
The negative pole colelctor electrode with audion VT1 after inductance L1 holding C9 is connected, its positive pole after resistance R16 with the P of diode D5
Pole is connected.The base stage of described audion VT2 is connected with the emitter stage of audion VT1.
Further, described data signal output circuit is by amplifier P2, amplifier P3, resistance R12, resistance R13, electricity
Resistance R14, resistance R17, adjustable resistance R18, polar capacitor C7, polar capacitor C8, diode D3, and diode D4 composition.
During connection, the P pole of diode D3 positive pole with amplifier P2 after resistance R14 is connected, its N pole is through resistance R12
Positive pole with amplifier P3 is connected afterwards.The negative pole of polar capacitor C7 N pole with diode D3 after resistance R13 is connected, it
After positive electrode resistance R17, the outfan with amplifier P2 is connected.The positive pole of polar capacitor C8 is connected with the negative pole of amplifier P3,
Its minus earth.The P pole of diode D4 is connected with the outfan of amplifier P3, its N pole after adjustable resistance R18 with amplifier
The outfan of P2 is connected.
The N pole of described diode D3 is connected with the outfan of amplifier P4；The minus earth of described amplifier P2, its just
Export after pole is connected with the emitter stage of audion VT2, its outfan is connected with the N pole of diode D5 and as data signal
The outfan of circuit.
As in figure 2 it is shown, described full-bridge buffer circuit is by amplifier P4, audion VT3, audion VT4, resistance R19, resistance
R20, resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance R26, polar capacitor C10, polar capacitor C11,
Polar capacitor C12, polar capacitor C13, inductance L2, diode D6, diode D7, and diode D8 form.
During connection, the positive pole of polar capacitor C10 base stage with audion VT3 after resistance R19 is connected, its negative pole conduct
The input of full-bridge buffer circuit is also connected with the CM pin processing chip U.The N pole of diode D7 and the collection of audion VT3
Electrode is connected, its P pole is sequentially connected through inductance L2 positive pole with amplifier P4 after resistance R25.Polar capacitor C13 is just
Pole is connected with the junction point of inductance L2 with resistance R25, its negative pole is connected with the outfan of amplifier P4.
Meanwhile, the P pole of diode D8 negative pole with amplifier P4 after resistance R24 is connected, its N pole is through adjustable resistance
After R26, the outfan with amplifier P4 is connected.The positive pole of polar capacitor C12 is connected with the base stage of audion VT4, its negative pole
It is connected with the P pole of diode D8.One end of resistance R23 is connected with the outfan of amplifier P4, its other end is electric with polarity
The negative pole holding C12 is connected.The positive pole of polar capacitor C11 is connected with the colelctor electrode of audion VT4, its minus earth.Two poles
The P pole of pipe D6 positive pole with polar capacitor C10 after resistance R20 is connected, its N pole after resistance R21 with polar capacitor C11's
Negative pole is connected.One end of resistance R22 is connected with the emitter stage of audion VT3, the emitter stage of its other end and audion VT4
It is connected.
The P pole of described diode D8 is connected with the negative pole of polar capacitor C11；The minus earth of described polar capacitor C12；
The outfan of described amplifier P4 as the outfan of full-bridge buffer circuit and is connected with data signal output circuit.
During operation, the small-signal of temperature sensor output can be amplified by the present invention, and the present invention can make output
Signal keeps consistent with the waveform of input signal, thus improves the present invention accuracy to signal processing, effectively ensure that
Signal output waveform does not haves distortion.
Meanwhile, energy over-voltage suppression of the present invention and restriction voltage increase rate and formation electromagnetic interference, make the signal of telecommunication more
Add stable and accurate, thus improve the present invention accuracy to signal processing.Input signal can be converted to specific by the present invention
The high-frequency signal of width or low frequency signal, the signal wave making signal is more steady, thus improves the present invention standard to signal processing
Really property.The process chip of the present invention uses the integrated chip of AD736 to realize, and this process chip has stronger capacity of resisting disturbance,
Thus effectively ensure that the present invention accuracy to signal processing.
According to above-described embodiment, can well realize the present invention.
Claims (6)
1. an electronic temperature controller signal processing system based on full-bridge buffer circuit, it is characterised in that main by processing
Chip U, after positive electrode resistance R6, the CF pin with process chip U is connected, negative pole is managed with the CM processing chip U after resistance R11
The polar capacitor C4 that foot is connected, the advance signal amplifying circuit being connected with the IN pin processing chip U, with process chip U
The pulse shaper being connected, the data signal output circuit being connected with pulse shaper, and it is serially connected in process core
Full-bridge buffer circuit composition between CM pin and the data signal output circuit of sheet U；Outside the VS pin of described process chip U connects
Portion's power supply.
A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit the most according to claim 1, its
Be characterised by, described full-bridge buffer circuit by amplifier P4, audion VT3, audion VT4, positive pole after resistance R19 with three poles
The base stage of pipe VT3 is connected, negative pole as full-bridge buffer circuit input and with the pole that is connected of CM pin processing chip U
Property electric capacity C10, N pole is connected with the colelctor electrode of audion VT3, P pole sequentially after inductance L2 and resistance R25 with amplifier P4's
The diode D7 that positive pole is connected, positive pole is connected with the junction point of inductance L2 with resistance R25, the output of negative pole and amplifier P4
Polar capacitor C13, the P pole that is connected of end negative pole with amplifier P4 after resistance R24 is connected, N pole is after adjustable resistance R26
The diode D8 being connected with the outfan of amplifier P4, positive pole is connected with the base stage of audion VT4, negative pole and diode D8
The polar capacitor C12 that is connected of P pole, one end is connected with the outfan of amplifier P4, the other end is negative with polar capacitor C12's
The resistance R23 that pole is connected, positive pole is connected with the colelctor electrode of audion VT4, polar capacitor C11, the P pole of minus earth is through electricity
Be connected with the positive pole of polar capacitor C10 after resistance R20, N pole negative pole with polar capacitor C11 after resistance R21 is connected two
Pole pipe D6, and the electricity that one end is connected with the emitter stage of audion VT3, the other end is connected with the emitter stage of audion VT4
Resistance R22 composition；The P pole of described diode D8 is connected with the negative pole of polar capacitor C11；The negative pole of described polar capacitor C12 connects
Ground；The outfan of described amplifier P4 as the outfan of full-bridge buffer circuit and is connected with data signal output circuit.
A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit the most according to claim 2, its
Being characterised by, described advance signal amplifying circuit is by amplifier P1, and positive pole is connected with the positive pole of amplifier P1, negative pole is as front
Putting the polar capacitor C11 of the input of signal amplification circuit, negative pole negative pole with amplifier P1 after resistance R1 is connected, positive pole
Sequentially through polar capacitor C2, P pole that resistance R3 outfan with amplifier P1 after resistance R4 is connected after resistance R2 with pole
The diode D1 that negative pole is connected, N pole is connected with the junction point of resistance R3 with resistance R4 of property electric capacity C2, and positive pole is through electricity
Be connected with the outfan of amplifier P1 after resistance R5, the polar capacitor C3 of minus earth forms；The outfan of described amplifier P1
As the outfan of advance signal amplifying circuit and it is connected with the IN pin processing chip U.
A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit the most according to claim 3, its
Be characterised by, described pulse shaper by audion VT1, audion VT2, N pole after resistance R8 with the current collection of audion VT1
The diode D2 that pole is connected, P pole is connected with the CC pin processing chip U after resistance R7, negative pole and the base of audion VT1
The polar capacitor C5 that pole is connected, positive pole is connected with the COM pin of process chip U, the emitter stage phase of negative pole and audion VT2
The polar capacitor C6 that connection, positive pole are connected with the OUT pin processing chip U after resistance R9, one end is with polar capacitor C6's
Resistance R10, the P pole that positive pole is connected, the other end is connected with the PWM pin of process chip U after adjustable resistance R15 with three poles
The colelctor electrode of pipe VT2 is connected, the emitter stage of N pole and audion VT2 be collectively forming pulse shaper outfan and with number
The diode D5 being connected according to signal output apparatus, and negative pole colelctor electrode with audion VT1 after inductance L1 is connected, just
The polar capacitor C9 composition that pole is connected with the P pole of diode D5 after resistance R16；The base stage of described audion VT2 and three poles
The emitter stage of pipe VT1 is connected.
A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit the most according to claim 4, its
Be characterised by, described data signal output circuit by amplifier P2, amplifier P3, P pole after resistance R14 with amplifier P2 just
The diode D3 that pole is connected, N pole positive pole with amplifier P3 after resistance R12 is connected, negative pole after resistance R13 with two poles
The polar capacitor C7 that the N pole of pipe D3 is connected, be connected with the outfan of amplifier P2 after positive electrode resistance R17, positive pole and amplification
The negative pole of device P3 is connected, the polar capacitor C8 of minus earth, and P pole is connected with the outfan of amplifier P3, N pole warp can
The diode D4 composition being connected with the outfan of amplifier P2 after adjusting resistance R18；The N pole of described diode D3 and amplifier P4
Outfan be connected；The minus earth of described amplifier P2, its positive pole are connected with the emitter stage of audion VT2, its output
After end is connected with the N pole of diode D5 and as the outfan of data signal output circuit.
A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit the most according to claim 5, its
Being characterised by, described process chip U is the integrated chip of AD736.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457812.8A CN106200715A (en) | 2016-06-21 | 2016-06-21 | A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457812.8A CN106200715A (en) | 2016-06-21 | 2016-06-21 | A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106200715A true CN106200715A (en) | 2016-12-07 |
Family
ID=57460724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610457812.8A Pending CN106200715A (en) | 2016-06-21 | 2016-06-21 | A kind of electronic temperature controller signal processing system based on full-bridge buffer circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106200715A (en) |
-
2016
- 2016-06-21 CN CN201610457812.8A patent/CN106200715A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |
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| WD01 | Invention patent application deemed withdrawn after publication |