CN105444901A - Hybrid oscillation type eddy current retarder temperature alarm system based on coupling amplification - Google Patents
Hybrid oscillation type eddy current retarder temperature alarm system based on coupling amplification Download PDFInfo
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- CN105444901A CN105444901A CN201510818619.8A CN201510818619A CN105444901A CN 105444901 A CN105444901 A CN 105444901A CN 201510818619 A CN201510818619 A CN 201510818619A CN 105444901 A CN105444901 A CN 105444901A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/28—Eddy-current braking
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
- H03F3/16—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with field-effect devices
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Abstract
The invention discloses a hybrid oscillation type eddy current retarder temperature alarm system based on coupling amplification, and the system is characterized in that the system consists of a signal input circuit, a power circuit connected with the signal input circuit, a triggering circuit, a display circuit, a hybrid oscillation circuit, a grid coupling amplification circuit, and an alarm circuit connected with the display circuit, wherein the triggering circuit, the display circuit, the hybrid oscillation circuit and the grid coupling amplification circuit are respectively connected with the power circuit; the grid coupling amplification circuit is also connected with the triggering circuit, and the triggering circuit is also connected with the display circuit. The system is provided with the grid coupling amplification circuit, and the grid coupling amplification circuit can achieve the amplification of a temperature signal inputted into the triggering circuit, thereby enabling the triggering circuit to achieve better control of the alarm circuit. An alarm signal can be sent once the working temperature of an eddy current retarder is a little high.
Description
Technical field
The present invention relates to a kind of current vortex retarder temperature alarm system, specifically refer to a kind of mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification.
Background technology
Along with current vortex retarder is in the widespread use of China's automobile industry, its security used is subject to all the more the attention of automobile production enterprise and user.During current vortex retarder work, the temperature of its rotor and coil raises very fast, and the installation site of current vortex retarder distance oil sealing end cap is very near, very easily causes fuel tank and catches fire, and then vehicle fire accident occurs, cause serious loss.The generation causing accident in order to avoid electric vortex buffering actuator temperature is too high, a kind of temperature alarming device need be designed to detect the temperature of current vortex retarder main frame, when main frame temperature reaches the alarm temperature value of setting, alerting signal can be sent, so that human pilot Timeliness coverage problem is also taken measures, prevent trouble before it happens.But, traditional its sensitivity of current vortex retarder temperature alarm system and degree of accuracy not high, cannot give the alarm to human pilot timely, this brings great potential safety hazard to driving.
Summary of the invention
The object of the invention is to overcome traditional its sensitivity of current vortex retarder temperature alarm system and degree of accuracy not high, timely to the defect that human pilot gives the alarm, a kind of mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification cannot be provided.
Object of the present invention is achieved through the following technical solutions: based on the mixing oscillatory type current vortex retarder temperature alarm system of coupling amplification, by signal input circuit, the power circuit be connected with signal input circuit, the trigger circuit be connected with power circuit respectively, display circuit, mixing oscillatory circuit and grid amplifier circuit, and the warning circuit be connected with display circuit forms, described grid amplifier circuit is also connected with trigger circuit, trigger circuit are also connected with display circuit, described grid amplifier circuit is by transformer T1, transformer T2, transformer T3, dual-gate field-effect pipe MOS1, dual-gate field-effect pipe MOS2, triode VT7, negative pole is connected with the Same Name of Ends of the former limit telefault of transformer T1, the electric capacity C13 that positive pole is then connected with trigger circuit, negative pole is connected with the Same Name of Ends of the former limit telefault of transformer T2, the electric capacity C14 that positive pole is then connected with power circuit, be serially connected in the electric capacity C8 between the non-same polarity of the secondary inductance coil of transformer T1 and the second grid of dual-gate field-effect pipe MOS1, be serially connected in the electric capacity C9 between the Same Name of Ends of the secondary inductance coil of transformer T1 and the first grid of dual-gate field-effect pipe MOS2, be serially connected in the electric capacity C10 between the non-same polarity of the secondary inductance coil of transformer T2 and the second grid of dual-gate field-effect pipe MOS2, positive pole is connected with the Same Name of Ends of the secondary inductance coil of transformer T2, the electric capacity C11 that negative pole is then connected with the base stage of triode VT7 after resistance R19, and negative pole is connected with the emitter of triode VT7, the electric capacity C12 that positive pole is then connected with the first grid of field effect transistor MOS1 after resistance R18 forms, the equal ground connection of non-same polarity of the non-same polarity of the former limit telefault of described transformer T1 and the former limit telefault of transformer T2, the source electrode of described dual-gate field-effect pipe MOS1 is connected with the source electrode of dual-gate field-effect pipe MOS2, it drains and be then connected with the drain electrode of dual-gate field-effect pipe MOS2, the Same Name of Ends of the former limit telefault of described transformer T3 is connected with the drain electrode of dual-gate field-effect pipe MOS1, its non-same polarity is then connected with the emitter of triode VT7, the Same Name of Ends of the secondary inductance coil of described transformer T3 is then connected with trigger circuit with non-same polarity, the grounded collector of described triode VT7.
Described mixing oscillatory circuit is by triode VT3, triode VT4, triode VT5, triode VT6, negative pole is connected with the emitter of triode VT3 after resistance R14 through resistance R15 in turn, the electric capacity C6 that positive pole is then directly connected with the emitter of triode VT3, negative pole is connected with the collector of triode VT5, the electric capacity C7 that positive pole is then connected with the emitter of triode VT5 after resistance R16, N pole is connected with the base stage of triode VT3, the diode D5 that P pole is then connected with the positive pole of electric capacity C7, N pole is connected with the base stage of triode VT4, the diode D6 that P pole is then connected with the negative pole of electric capacity C6, be serially connected in the resistance R17 between the base stage of triode VT4 and collector, and the diode D7 be serially connected between the collector of triode VT6 and the collector of triode VT4 forms, the grounded collector of described triode VT3, the base stage of described triode VT4 is connected with the collector of triode VT5, its emitter is then connected with the base stage of triode VT5, the base stage of described triode VT6 is connected with the base stage of triode VT5, its emitter is then connected with trigger circuit, described resistance R14 is then connected with power circuit with the tie point of resistance R15.
Further, described signal input circuit is by temperature sensor, triode VT1, and the resistance R1 that one end is connected with the emitter of triode VT1, the other end is then connected with collector with the base stage of triode VT1 respectively after potentiometer R2 forms, the emitter of described triode VT1 is then all connected with temperature sensor with the tie point of potentiometer R2 with resistance R1; The control end of described potentiometer R2 is then connected with the tie point of potentiometer R2 with resistance R1; The emitter of described triode VT1 is then all connected with power circuit with its collector.
Described power circuit comprises automobile power source, resistance R3, resistance R4, electric capacity C1, electric capacity C2 and diode D1; Described resistance R3 is serially connected between the emitter and collector of triode VT1; The negative pole of described electric capacity C1 is connected with the positive pole of electric capacity C14, its positive pole is then connected with the collector of triode VT1 after resistance R4; The N pole of described diode D1 is connected with the negative pole of automobile power source, its P pole is then connected with the emitter of triode VT6 after electric capacity C2; The described emitter of triode VT1 is connected with the positive pole of automobile power source, its collector is then connected with the tie point of resistance R15 with resistance R14; The P pole of described diode D1 is also connected with display circuit.
Described trigger circuit are by flip chip U, triode VT2, one end is connected with the emitter of triode VT6, the resistance R6 that the other end is then connected with RE pin with the VCC pin of flip chip U respectively, N pole is connected with the TRIG pin of flip chip U, the diode D2 that P pole is then connected with display circuit after resistance R7, be serially connected in the resistance R8 between the P pole of diode D2 and the THRE pin of flip chip U, positive pole is connected with the CONT pin of flip chip U, the electric capacity C3 that negative pole is then connected with the collector of triode VT2 after resistance R10, be serially connected in the resistance R9 between the OUT pin of flip chip U and the base stage of triode VT2, be serially connected in the relay K between the emitter of triode VT2 and the RE pin of flip chip U, and form with the diode D3 that relay K is in parallel, ground connection while the GND pin of described flip chip U is connected with the non-same polarity of the secondary inductance coil of transformer T3, the Same Name of Ends of the secondary inductance coil of described transformer T3 is connected with the negative pole of electric capacity C3, the P pole of described diode D2 is also connected with the positive pole of electric capacity C13.
Described display circuit is by amplifier P1, amplifier P2, the resistance R5 that one end is connected with the P pole of diode D1, the other end is then connected with the positive pole of amplifier P1, the resistance R11 that one end is connected with the emitter of triode VT1, the other end is then connected with the positive pole of amplifier P2 after resistance R12, be serially connected in the electric capacity C4 between the positive pole of amplifier P2 and output terminal, and the display screen that input end is connected with the output terminal of amplifier P2 forms; The positive pole of described amplifier P1 is connected with warning circuit, its negative pole is then connected with the P pole of diode D2 after resistance R7, its output terminal is then connected with the tie point of resistance R11 and resistance R12 and warning circuit respectively; The negative pole of described amplifier P2 is then connected with its output terminal.
Described warning circuit is then by process chip U1, the voltage stabilizing diode D4 that N pole is connected with the positive pole of amplifier P1 after resistance R13, P pole is then connected with the LX pin of process chip U1 in turn after the normally opened contact K1 of inductance L 1, alarm B and relay K, the electric capacity C5 that negative pole is connected with the ADJ pin of process chip U1, positive pole is then connected with the positive pole of amplifier P1 forms; Ground connection while the VIN pin of described process chip U1 is connected with the N pole of voltage stabilizing diode D4, its ISE pin is then connected with the P pole of voltage stabilizing diode D4, its GND pin is then connected with the output terminal of amplifier P1.
In order to reach better implementation result, described flip chip U is preferably NE555 integrated chip, and described process chip U1 is then preferably SN3350 integrated chip and realizes.
The present invention comparatively prior art compares, and has the following advantages and beneficial effect:
(1) volume of the present invention is little, easy for installation.
(2) reaction velocity of the present invention is fast, can sound the alarm timely, check in time to remind driver to vehicle when the working temperature of current vortex retarder is too high.
(3) the present invention can carry out Real-Time Monitoring to the working temperature of current vortex retarder, and is shown intuitively by display screen, makes driver can understand the working temperature of current vortex retarder at any time.
(4) the present invention is provided with grid amplifier circuit, it can carry out amplification process to the temperature signal be input in trigger circuit, thus trigger circuit are better controlled, once alerting signal can be sent timely when the working temperature of eddy current retarder is higher to warning circuit.
Accompanying drawing explanation
Fig. 1 is one-piece construction figure of the present invention.
Fig. 2 is the circuit structure diagram of the novel mixing oscillatory circuit of this practicality.
Fig. 3 is the structural drawing of the novel grid amplifier circuit of this practicality.
Embodiment
Below in conjunction with embodiment, 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, mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification of the present invention, by signal input circuit, the power circuit be connected with signal input circuit, the trigger circuit be connected with power circuit respectively, display circuit and mix oscillatory circuit, the warning circuit be connected with display circuit, and the grid amplifier circuit be serially connected between described power circuit and trigger circuit forms.
Described signal input circuit is for gathering the temperature signal of current vortex retarder, and it is by the temperature sensor be arranged on eddy current retarder stators, triode VT1, and resistance R1 and potentiometer R2 forms.
During connection, one end of resistance R1 is connected with the emitter of triode VT1, its other end is then connected with collector with the base stage of triode VT1 respectively after potentiometer R2.The emitter of described triode VT1 is then all connected with temperature sensor with the tie point of potentiometer R2 with resistance R1.The control end of described potentiometer R2 is then connected with the tie point of potentiometer R2 with resistance R1.The emitter of described triode VT1 is then all connected with power circuit with its collector.The KYW series mini temperature sensor that described temperature sensor preferentially adopts ocean, the Kunlun, Beijing instrument Science and Technology Ltd. to produce realizes.
Described power circuit comprises automobile power source, resistance R3, resistance R4, electric capacity C1, electric capacity C2 and diode D1.During connection, described resistance R3 is serially connected between the emitter and collector of triode VT1.The negative pole of described electric capacity C1 is connected with grid amplifier circuit, its positive pole is then connected with the collector of triode VT1 after resistance R4.The N pole of described diode D1 is connected with the negative pole of automobile power source, its P pole is then connected with mixing oscillatory circuit after electric capacity C2.The described emitter of triode VT1 is connected with the positive pole of automobile power source, its collector is then connected with mixing oscillatory circuit.The P pole of described diode D1 is also connected with display circuit.Described automobile power source is used for providing working power to whole temperature alarm system.
Described trigger circuit are used for controlling warning circuit, and it is by flip chip U, triode VT2, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, diode D2, diode D3, electric capacity C3 and relay K composition.
During connection, one end of resistance R6 is connected with mixing oscillatory circuit, its other end is then connected with RE pin with the VCC pin of flip chip U respectively, the N pole of diode D2 is connected with the TRIG pin of flip chip U, its P pole is then connected with display circuit after resistance R7, resistance R8 is then serially connected between the P pole of diode D2 and the THRE pin of flip chip U, the positive pole of electric capacity C3 is connected with the CONT pin of flip chip U, its negative pole is then connected with the collector of triode VT2 after resistance R10, resistance R9 is then serially connected between the OUT pin of flip chip U and the base stage of triode VT2, relay K is serially connected between the emitter of triode VT2 and the RE pin of flip chip U, diode D3 is then in parallel with relay K.Ground connection while the GND pin of described flip chip U is connected with grid amplifier circuit.The negative pole of described electric capacity C3 is then all connected with grid amplifier circuit with the P pole of diode D2.In order to reach better implementation result, described flip chip U preferentially selects NE555 integrated chip to realize.
Described display circuit is by amplifier P1, amplifier P2, the resistance R5 that one end is connected with the P pole of diode D1, the other end is then connected with the positive pole of amplifier P1, the resistance R11 that one end is connected with the emitter of triode VT1, the other end is then connected with the positive pole of amplifier P2 after resistance R12, be serially connected in the electric capacity C4 between the positive pole of amplifier P2 and output terminal, and the display screen that input end is connected with the output terminal of amplifier P2 forms.The positive pole of described amplifier P1 is connected with warning circuit, its negative pole is then connected with the P pole of diode D2 after resistance R7, its output terminal is then connected with the tie point of resistance R11 and resistance R12 and warning circuit respectively.The negative pole of described amplifier P2 is then connected with its output terminal.
Described warning circuit is then by process chip U1, the voltage stabilizing diode D4 that N pole is connected with the positive pole of amplifier P1 after resistance R13, P pole is then connected with the LX pin of process chip U1 in turn after the normally opened contact K1 of inductance L 1, alarm B and relay K, the electric capacity C5 that negative pole is connected with the ADJ pin of process chip U1, positive pole is then connected with the positive pole of amplifier P1 forms.Ground connection while the VIN pin of described process chip U1 is connected with the N pole of voltage stabilizing diode D4, its ISE pin is then connected with the P pole of voltage stabilizing diode D4, its GND pin is then connected with the output terminal of amplifier P1.Described process chip U1 is preferably SN3350 integrated chip to realize, and reaches better implementation result to make the present invention.
Mixing oscillatory circuit can be and the invention provides oscillator signal better to drive the present invention, its structure as shown in Figure 2, by triode VT3, triode VT4, triode VT5, triode VT6, resistance R14, resistance R15, resistance R16, resistance R17, electric capacity C6, electric capacity C7, diode D5, diode D6 and triode D7 form.
During connection, the negative pole of electric capacity C6 is got back to its positive pole in turn and is formed a loop after resistance R15 and resistance R14.The negative pole of electric capacity C7 is connected with the collector of triode VT5, its positive pole is then connected with the emitter of triode VT5 after resistance R16.The N pole of diode D5 is connected with the base stage of triode VT3, its P pole is then connected with the positive pole of electric capacity C7.The N pole of diode D6 is connected with the base stage of triode VT4, its P pole is then connected with the negative pole of electric capacity C6.Between the base stage that resistance R17 is then serially connected in triode VT4 and collector.Diode D7 is serially connected between the collector of triode VT6 and the collector of triode VT4.
Grounded collector, its emitter of described triode VT3 are then connected with the positive pole of electric capacity C6.The base stage of described triode VT4 is connected with the collector of triode VT5, its emitter is then connected with the base stage of triode VT5.The output terminal that the base stage of described triode VT6 is connected with the base stage of triode VT5, emitter then forms this mixing oscillatory circuit, it is connected with the VCC pin of flip chip U after resistance R6.The tie point of described resistance R14 and resistance R15 then forms the input end of this mixing oscillatory circuit, and it is connected with the collector of triode VT1.
Grid amplifier circuit is then emphasis of the present invention, and as shown in Figure 3, it is by transformer T1, transformer T2, transformer T3, dual-gate field-effect pipe MOS1, dual-gate field-effect pipe MOS2, triode VT7, electric capacity C8, electric capacity C9, electric capacity C10, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C14, resistance R18 and resistance R19 form.
Wherein, the negative pole of electric capacity C13 is connected with the Same Name of Ends of the former limit telefault of transformer T1, its positive pole is then connected with the P pole of diode D2.The negative pole of electric capacity C14 is connected with the Same Name of Ends of the former limit telefault of transformer T2, its positive pole is then connected with the negative pole of electric capacity C1.Electric capacity C8 is then serially connected between the non-same polarity of the secondary inductance coil of transformer T1 and the second grid of dual-gate field-effect pipe MOS1.Electric capacity C9 is serially connected between the Same Name of Ends of the secondary inductance coil of transformer T1 and the first grid of dual-gate field-effect pipe MOS2.Electric capacity C10 is serially connected between the non-same polarity of the secondary inductance coil of transformer T2 and the second grid of dual-gate field-effect pipe MOS2.The positive pole of electric capacity C11 is connected with the Same Name of Ends of the secondary inductance coil of transformer T2, its negative pole is then connected with the base stage of triode VT7 after resistance R19.The negative pole of electric capacity C12 is connected with the emitter of triode VT7, its positive pole is then connected with the first grid of field effect transistor MOS1 after resistance R18.
Meanwhile, the equal ground connection of non-same polarity of the non-same polarity of the former limit telefault of described transformer T1 and the former limit telefault of transformer T2.The source electrode of described dual-gate field-effect pipe MOS1 is connected with the source electrode of dual-gate field-effect pipe MOS2, it drains and be then connected with the drain electrode of dual-gate field-effect pipe MOS2.The Same Name of Ends of the former limit telefault of described transformer T3 is connected with the drain electrode of dual-gate field-effect pipe MOS1, its non-same polarity is then connected with the emitter of triode VT7.The non-same polarity of the secondary inductance coil of described transformer T3 is connected with the GND pin of flip chip U, its Same Name of Ends is then connected with the negative pole of electric capacity C3.The grounded collector of described triode VT7.After signal input is come in, be coupled to the grid of dual-gate field-effect pipe MOS1 and dual-gate field-effect pipe MOS2 through transformer T1 and transformer T2, then exported by transformer T3 after carrying out amplification process via the coupling amplifier that dual-gate field-effect pipe MOS1 and dual-gate field-effect pipe MOS2 form.
During work, the real time temperature signal of temperature sensor to current vortex retarder gathers, this temperature signal is divided into two-way after power circuit and mixing oscillatory circuit, one tunnel is input to trigger circuit after grid amplifier circuit, another road is then input to display circuit, and is input to warning circuit by display circuit.The temperature signal be input in trigger circuit demonstrates temperature value intuitively by display screen after conversion.When current vortex retarder is working properly, flip chip U output LOW voltage, triode VT2 not conducting, relay K must not remain open by its normally opened contact of electricity, and alarm is not reported to the police.After the working temperature of electric whirlpool retarder raises, flip chip U output HIGH voltage makes triode VT2 conducting, and at this moment relay K obtains electric its normally opened contact K1 and closes, thus conducting alarm B, makes alarm B give the alarm, to remind driver.
As mentioned above, just well the present invention can be implemented.
Claims (8)
1. based on the mixing oscillatory type current vortex retarder temperature alarm system of coupling amplification, it is characterized in that, by signal input circuit, the power circuit be connected with signal input circuit, the trigger circuit be connected with power circuit respectively, display circuit, mixing oscillatory circuit and grid amplifier circuit, and the warning circuit be connected with display circuit forms, described grid amplifier circuit is also connected with trigger circuit, trigger circuit are also connected with display circuit, described grid amplifier circuit is by transformer T1, transformer T2, transformer T3, dual-gate field-effect pipe MOS1, dual-gate field-effect pipe MOS2, triode VT7, negative pole is connected with the Same Name of Ends of the former limit telefault of transformer T1, the electric capacity C13 that positive pole is then connected with trigger circuit, negative pole is connected with the Same Name of Ends of the former limit telefault of transformer T2, the electric capacity C14 that positive pole is then connected with power circuit, be serially connected in the electric capacity C8 between the non-same polarity of the secondary inductance coil of transformer T1 and the second grid of dual-gate field-effect pipe MOS1, be serially connected in the electric capacity C9 between the Same Name of Ends of the secondary inductance coil of transformer T1 and the first grid of dual-gate field-effect pipe MOS2, be serially connected in the electric capacity C10 between the non-same polarity of the secondary inductance coil of transformer T2 and the second grid of dual-gate field-effect pipe MOS2, positive pole is connected with the Same Name of Ends of the secondary inductance coil of transformer T2, the electric capacity C11 that negative pole is then connected with the base stage of triode VT7 after resistance R19, and negative pole is connected with the emitter of triode VT7, the electric capacity C12 that positive pole is then connected with the first grid of field effect transistor MOS1 after resistance R18 forms, the equal ground connection of non-same polarity of the non-same polarity of the former limit telefault of described transformer T1 and the former limit telefault of transformer T2, the source electrode of described dual-gate field-effect pipe MOS1 is connected with the source electrode of dual-gate field-effect pipe MOS2, it drains and be then connected with the drain electrode of dual-gate field-effect pipe MOS2, the Same Name of Ends of the former limit telefault of described transformer T3 is connected with the drain electrode of dual-gate field-effect pipe MOS1, its non-same polarity is then connected with the emitter of triode VT7, the Same Name of Ends of the secondary inductance coil of described transformer T3 is then connected with trigger circuit with non-same polarity, the grounded collector of described triode VT7,
Described mixing oscillatory circuit is by triode VT3, triode VT4, triode VT5, triode VT6, negative pole is connected with the emitter of triode VT3 after resistance R14 through resistance R15 in turn, the electric capacity C6 that positive pole is then directly connected with the emitter of triode VT3, negative pole is connected with the collector of triode VT5, the electric capacity C7 that positive pole is then connected with the emitter of triode VT5 after resistance R16, N pole is connected with the base stage of triode VT3, the diode D5 that P pole is then connected with the positive pole of electric capacity C7, N pole is connected with the base stage of triode VT4, the diode D6 that P pole is then connected with the negative pole of electric capacity C6, be serially connected in the resistance R17 between the base stage of triode VT4 and collector, and the diode D7 be serially connected between the collector of triode VT6 and the collector of triode VT4 forms, the grounded collector of described triode VT3, the base stage of described triode VT4 is connected with the collector of triode VT5, its emitter is then connected with the base stage of triode VT5, the base stage of described triode VT6 is connected with the base stage of triode VT5, its emitter is then connected with trigger circuit, described resistance R14 is then connected with power circuit with the tie point of resistance R15.
2. the mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification according to claim 1, it is characterized in that, described signal input circuit is by temperature sensor, triode VT1, and the resistance R1 that one end is connected with the emitter of triode VT1, the other end is then connected with collector with the base stage of triode VT1 respectively after potentiometer R2 forms, the emitter of described triode VT1 is then all connected with temperature sensor with the tie point of potentiometer R2 with resistance R1; The control end of described potentiometer R2 is then connected with the tie point of potentiometer R2 with resistance R1; The emitter of described triode VT1 is then all connected with power circuit with its collector.
3. the mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification according to claim 2, it is characterized in that, described power circuit comprises automobile power source, resistance R3, resistance R4, electric capacity C1, electric capacity C2 and diode D1; Described resistance R3 is serially connected between the emitter and collector of triode VT1; The negative pole of described electric capacity C1 is connected with the positive pole of electric capacity C14, its positive pole is then connected with the collector of triode VT1 after resistance R4; The N pole of described diode D1 is connected with the negative pole of automobile power source, its P pole is then connected with the emitter of triode VT6 after electric capacity C2; The described emitter of triode VT1 is connected with the positive pole of automobile power source, its collector is then connected with the tie point of resistance R15 with resistance R14; The P pole of described diode D1 is also connected with display circuit.
4. the mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification according to claim 3, it is characterized in that, described trigger circuit are by flip chip U, triode VT2, one end is connected with the emitter of triode VT6, the resistance R6 that the other end is then connected with RE pin with the VCC pin of flip chip U respectively, N pole is connected with the TRIG pin of flip chip U, the diode D2 that P pole is then connected with display circuit after resistance R7, be serially connected in the resistance R8 between the P pole of diode D2 and the THRE pin of flip chip U, positive pole is connected with the CONT pin of flip chip U, the electric capacity C3 that negative pole is then connected with the collector of triode VT2 after resistance R10, be serially connected in the resistance R9 between the OUT pin of flip chip U and the base stage of triode VT2, be serially connected in the relay K between the emitter of triode VT2 and the RE pin of flip chip U, and form with the diode D3 that relay K is in parallel, ground connection while the GND pin of described flip chip U is connected with the non-same polarity of the secondary inductance coil of transformer T3, the Same Name of Ends of the secondary inductance coil of described transformer T3 is connected with the negative pole of electric capacity C3, the P pole of described diode D2 is also connected with the positive pole of electric capacity C13.
5. the mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification according to claim 4, it is characterized in that, described display circuit is by amplifier P1, amplifier P2, one end is connected with the P pole of diode D1, the resistance R5 that the other end is then connected with the positive pole of amplifier P1, one end is connected with the emitter of triode VT1, the resistance R11 that the other end is then connected with the positive pole of amplifier P2 after resistance R12, be serially connected in the electric capacity C4 between the positive pole of amplifier P2 and output terminal, and the display screen that input end is connected with the output terminal of amplifier P2 forms, the positive pole of described amplifier P1 is connected with warning circuit, its negative pole is then connected with the P pole of diode D2 after resistance R7, its output terminal is then connected with the tie point of resistance R11 and resistance R12 and warning circuit respectively, the negative pole of described amplifier P2 is then connected with its output terminal.
6. the mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification according to claim 5, it is characterized in that, described warning circuit is then by process chip U1, the voltage stabilizing diode D4 that N pole is connected with the positive pole of amplifier P1 after resistance R13, P pole is then connected with the LX pin of process chip U1 in turn after the normally opened contact K1 of inductance L 1, alarm B and relay K, the electric capacity C5 that negative pole is connected with the ADJ pin of process chip U1, positive pole is then connected with the positive pole of amplifier P1 forms; Ground connection while the VIN pin of described process chip U1 is connected with the N pole of voltage stabilizing diode D4, its ISE pin is then connected with the P pole of voltage stabilizing diode D4, its GND pin is then connected with the output terminal of amplifier P1.
7. the mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification according to claim 6, it is characterized in that, described flip chip U is NE555 integrated chip.
8. the mixing oscillatory type current vortex retarder temperature alarm system based on coupling amplification according to claim 6, it is characterized in that, described process chip U1 is SN3350 integrated chip.
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| CN201510818619.8A CN105444901A (en) | 2015-11-23 | 2015-11-23 | Hybrid oscillation type eddy current retarder temperature alarm system based on coupling amplification |
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| CN201510818619.8A CN105444901A (en) | 2015-11-23 | 2015-11-23 | Hybrid oscillation type eddy current retarder temperature alarm system based on coupling amplification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106289547A (en) * | 2016-09-26 | 2017-01-04 | 四川森迪科技发展股份有限公司 | Plantation Fructus Fici offset monitoring-temperature alarm system based on nonlinear compensation |
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| CN2913628Y (en) * | 2006-04-30 | 2007-06-20 | 刘光平 | Temperature control circuit for vehicle engine cooling system |
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