CN110652659A - Control circuit of temperature control gust fan - Google Patents
Control circuit of temperature control gust fan Download PDFInfo
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- CN110652659A CN110652659A CN201910738683.3A CN201910738683A CN110652659A CN 110652659 A CN110652659 A CN 110652659A CN 201910738683 A CN201910738683 A CN 201910738683A CN 110652659 A CN110652659 A CN 110652659A
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- 239000003990 capacitor Substances 0.000 claims description 42
- 230000002457 bidirectional effect Effects 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 241000407193 Pindis Species 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 4
- 230000005693 optoelectronics Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- A—HUMAN NECESSITIES
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- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0625—Warming the body, e.g. hyperthermia treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0626—Monitoring, verifying, controlling systems and methods
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/065—Light sources therefor
- A61N2005/0654—Lamps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
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Abstract
The invention relates to the technical field of electric appliance circuits, in particular to a temperature control gust fan control circuit. The technical problem to be solved is to provide a control circuit for controlling the gust fan, which can change the gust interval time according to the temperature. A temperature control gust fan control circuit comprises a voltage stabilizing power supply module, a temperature control circuit module, a multivibrator module and the like; the input end of the temperature control circuit module is connected with the output end of the voltage stabilizing power supply module, and the output end of the temperature control circuit module is connected with the input end of the multivibrator module. When the indoor temperature is higher than a high-temperature set value, the fan starts to work to provide one gust of wind, and the other gust of wind is provided between high temperature and low temperature; when the indoor temperature is lower than the low-temperature set value, the fan stops working, the circuit is low in cost, gust of the fan is adjusted according to the indoor temperature, and the circuit is simple and reliable.
Description
Technical Field
The invention relates to the technical field of electric appliance circuits, in particular to a temperature control gust fan control circuit.
Disclosure of Invention
The technical scheme is as follows: a temperature control gust fan control circuit comprises a voltage stabilizing power supply module, a temperature control circuit module, a multivibrator module, a photoelectric coupler control circuit and an electric fan, wherein the input end of the temperature control circuit module is connected with the output end of the voltage stabilizing power supply module, the output end of the temperature control circuit module is connected with the input end of the multivibrator module, the output end of the multivibrator module is connected with the input end of the photoelectric coupler control circuit, and the photoelectric coupler control circuit is connected with the electric fan.
Preferably, the stabilized voltage supply module comprises a 12V dual-output transformer, a capacitor C1, a three-terminal regulator 7812U4, a bridge stack VC, an electrolytic capacitor EC1, an electrolytic capacitor EC2, an electrolytic capacitor EC3 and an electrolytic capacitor EC4, the L end and the N end of the input end of the stabilized voltage supply module are sequentially connected with the 12V dual-output transformer, the output end of the 12V dual-output transformer is connected in parallel with the two ends of the AC end of the bridge stack VC, the output end of the bridge stack VC is connected in parallel with the electrolytic capacitors EC1 and EC2 and EC4 in series to output +/-15V direct current, a core tap in the 12V dual-output transformer is grounded, the output end V-of the bridge stack VC is connected with the input end of an LM7812 three-terminal regulator U4, the output pin of the three-terminal regulator U4 is connected in parallel with the capacitor C1 and the electrolytic capacitor EC4, the grounding pin.
Preferably, the temperature control circuit module comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a quad operational amplifier LM324, triodes Q1 and Q2, relays RL1 and RL2, diodes D1 and D2, a temperature sensor AD590, potentiometers VR1 and VR2, a resistor R1 is connected with a power output terminal-15V at one end, a resistor R is connected with a temperature sensing AD590 at the other end, a resistor R2 and a resistor R3 are connected IN parallel at the other end of the temperature sensing AD590 at one end and connected with a 1IN + pin of the quad operational amplifier LM324 at one end, a resistor R2 is connected with a power output terminal +15V of the quad operational amplifier LM324 at the other end, a resistor R3 is connected with a resistor R4 at the other end, a connection point between the resistor R3 and the resistor R4 IN series is connected with a 2IN +, 3-end of the quad operational amplifier LM324 at the other end, a resistor 4 is connected with a VCC operational amplifier OUT end, and a power output terminal of the quad, potentiometers VR1 and VR2 are connected IN parallel at the output end of a three-terminal regulator U4, the output end of a potentiometer VR1 is connected with the 3IN + end of a four-operational amplifier LM324, the output end of a potentiometer VR2 is connected with the 2 IN-end of the four-operational amplifier LM324, the 3OUT end of the four-operational amplifier LM324 is connected with one end of a resistor R6, the other end of the resistor R6 is connected with the base of a triode Q1, the collector of the triode Q1 is connected with one end of a relay RL2, the other end of the relay RL2 is connected with the +12V end of the three-terminal regulator U4, two ends of the relay RL2 are connected with a diode D2 IN; the 2OUT end of the four-operational amplifier LM324 is connected with one end of a resistor R5, the other end of the resistor R5 is connected with a base electrode of a triode Q2, a collector electrode of the triode Q2 is connected with one end of a relay RL1, the other end of the relay RL1 is connected with +12V of the input end of a three-terminal regulator U4, two ends of the relay RL1 are connected with a diode D1 in parallel, an emitter electrode of the triode Q2 is grounded, a normally closed end of the relay RL1 COM end and a normally closed end of a relay RL2 are connected in series and connected with a diode D8, a normally open end of the RL2 is connected with a diode D7, diodes D7 and D8 form an OR gate, a COM end of the relay RL2 is connected with +12V of.
Preferably, the multivibrator module comprises a timer U1, a first branch resistor R7, a resistor R8, diodes D3 and D4, an electrolytic capacitor EC5 and a potentiometer VR4, wherein one end of the resistor R7 is connected in series with the potentiometer VR3, the other end of the resistor R7 is connected with the normally open end of the relay RL2, a connection point between one end of the resistor R7 and one end of the potentiometer VR 3in series is connected with one end of the resistor R8 and the cathode of the diode D3, the anode of the diode D3 is connected in series with the anode of the diode D4 and is connected with the adjustable end of the potentiometer VR1, a trigger pin of the timer chip is connected with the connection point between the cathode of the diode D4 and the other end of the potentiometer VR 3in parallel, a reset pin RESTE and a power supply pin VCC of the timer chip are connected with the normally open end of the relay RL2 through the diode D7, and the other end of the resistor R686; the second branch circuit is composed of a resistor R9, a resistor R10, diodes D5 and D6, an electrolytic capacitor EC5 and a potentiometer VR4, one end of the resistor R9 is connected with the potentiometer VR4 in series, the other end of the resistor R9 is connected with the normally-closed end of the relay RL1, a connection point between one end of the resistor R9 and one end of the potentiometer VR 3in series is connected with one end of a resistor R10 and the cathode of the diode D5, the anode of the diode D5 and the anode of the diode D6 are connected in series and connected with the adjustable end of the potentiometer VR4, the trigger pin of the timer chip is connected with the connection point between the cathode of the diode D6 and the other end of the potentiometer VR4 in parallel, the reset pin RESTE and the power supply pin VCC of the timer chip are connected with the normally-closed end of the relay RL1 through a diode D8, and the other; the threshold pin THR of the timer chip is connected with a connection point between the electrolytic capacitor EC5 and the series connection of the cathodes of the diodes D4 and D6, the other end of the electrolytic capacitor EC5 is grounded, the control pin CTRL of the timer chip is connected with the capacitor C2, the other end of the capacitor C2 is grounded, the discharge pin DIS of the timer chip is connected with the other end of the resistor R11, the threshold pin THR of the timer chip is connected with the trigger pin, and the output pin OUT of the timer chip is connected with the input end of the photoelectric coupler control circuit.
Preferably, the photocoupler control circuit comprises a photocoupler, a bidirectional thyristor, a resistor R11, a resistor R12 and a resistor R13, one end of the resistor R12 is connected with a collector of the photocoupler, a G pole of the bidirectional thyristor is connected with one end of the resistor R13 in series, a connection point between the G pole of the bidirectional thyristor and one end of the resistor R13 in series is connected with an emitter of the photocoupler, a T1 pole of the bidirectional thyristor is connected with the other end of the resistor R13 in series, a connection point between the T1 pole of the bidirectional thyristor and one end of the resistor R13 in series is connected with an alternating current N end of the regulated power supply module, a cathode of the photocoupler is connected with a ground terminal, an anode of the photocoupler is connected with one end of the resistor R11, and the other end of the resistor R58.
Preferably, one end of the electric fan is connected with an alternating current L end of the voltage-stabilized power supply module, and the other end of the electric fan is connected with one end of a resistor R12 and a T2 pole of the bidirectional triode thyristor.
Preferably, the multivibrator module adopts NE555, the temperature control circuit module adopts a four-operational amplifier LM324, the temperature sensor adopts AD590, and the photoelectric coupler adopts MOC 3061; the bidirectional controllable silicon adopts BT138, and the three-terminal voltage regulator adopts LM 7812.
Drawings
Fig. 1 is a general schematic diagram of a temperature controlled gust fan control circuit of the present invention.
Fig. 2 is a circuit diagram of a temperature-controlled gust fan control circuit according to the present invention.
Reference numerals: the electric fan comprises a voltage-stabilized power supply module 1, a temperature control circuit module 2, a multivibrator module 3, a photoelectric coupler control circuit 4 and an electric fan 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.
Example 1
A temperature control gust fan control circuit is shown in figure 1 and comprises a stabilized voltage power supply module 1, a temperature control circuit module 2, a multivibrator module 3, a photoelectric coupler control circuit 4 and an electric fan 5, wherein the input end of the temperature control circuit module 2 is connected with the output end of the stabilized voltage power supply module 1, the output end of the temperature control circuit module 2 is connected with the input end of the multivibrator module 3, the output end of the multivibrator module 3 is connected with the input end of the photoelectric coupler control circuit 4, and the photoelectric coupler control circuit 4 is connected with the electric fan 5.
Example 2
A temperature-controlled gust fan control circuit is shown in FIG. 2, the regulated power supply module 1 comprises a 12V dual-output transformer, a capacitor C1, a three-terminal regulator 7812U4, a bridge rectifier VC, an electrolytic capacitor EC1, an electrolytic capacitor EC2, an electrolytic capacitor EC3 and an electrolytic capacitor EC4, the L end and the N end of the input end of the voltage-stabilized power supply module 1 are sequentially connected with a 12V double-output transformer, the output end of the 12V double-output transformer is connected in parallel with the two ends of the AC end of a bridge rectifier VC, the output end of the bridge rectifier VC is connected in parallel with an electrolytic capacitor EC1 and an EC2 which are connected in series with EC4 to output +/-15V direct current, a core tap in the 12V double-output transformer is grounded, the output end V-of the bridge rectifier VC is connected with the input end of an LM7812 three-terminal voltage regulator U4, the output pin of the three-terminal voltage regulator U4 is connected with a capacitor C1 and an electrolytic capacitor EC4 in parallel, the grounding pin of the three-terminal voltage regulator U4 is grounded, and the three-terminal voltage regulator U4 outputs +12V direct current.
The temperature control circuit module 2 comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a four-way operational amplifier LM324, triodes Q1 and Q2, relays RL1 and RL2, diodes D1 and D2, a temperature sensor AD590, potentiometers VR1 and VR2, a resistor R1 with one end connected with a power output terminal-15V and the other end connected with a temperature sensor AD590, a resistor R2 and R3 with the other end connected IN parallel with one end of the temperature sensor AD590 and connected with a 1IN + pin of the four-way operational amplifier LM324, a resistor R2 with the other end connected with VCC of the four-way operational amplifier LM324 and with the power output terminal +15V, a resistor R3 with the other end of the resistor R4, a connection point between the other end of the resistor R3 and one end of the resistor R4 IN series connected with 2 +, 3 IN-terminal of the four-way operational amplifier LM324, a resistor R4 with the OUT 1 terminal of the four-way operational amplifier LM324 and the output terminal GN, potentiometers VR1 and VR2 are connected IN parallel at the output end of a three-terminal regulator U4, the output end of a potentiometer VR1 is connected with the 3IN + end of a four-operational amplifier LM324, the output end of a potentiometer VR2 is connected with the 2 IN-end of the four-operational amplifier LM324, the 3OUT end of the four-operational amplifier LM324 is connected with one end of a resistor R6, the other end of the resistor R6 is connected with the base of a triode Q1, the collector of the triode Q1 is connected with one end of a relay RL2, the other end of the relay RL2 is connected with the +12V end of the three-terminal regulator U4, two ends of the relay RL2 are connected with a diode D2 IN parallel; the 2OUT end of the four-operational amplifier LM324 is connected with one end of a resistor R5, the other end of the resistor R5 is connected with a base electrode of a triode Q2, a collector electrode of the triode Q2 is connected with one end of a relay RL1, the other end of the relay RL1 is connected with +12V of the input end of a three-terminal regulator U4, two ends of the relay RL1 are connected with a diode D1 in parallel, an emitter electrode of the triode Q2 is grounded, a normally closed end of the relay RL1 COM end and a normally closed end of a relay RL2 are connected in series and connected with a diode D8, a normally open end of the RL2 is connected with a diode D7, diodes D7 and D8 form an OR gate, a COM end of the relay RL2 is connected with +12V of.
The multivibrator module 3 comprises a timer U1, a first branch resistor R7, a resistor R8, diodes D3 and D4, an electrolytic capacitor EC5 and a potentiometer VR4, wherein one end of the resistor R7 is connected in series with the potentiometer VR3, the other end of the resistor R7 is connected with the normally-open end of the relay RL2, a connection point between one end of the resistor R7 and one end of the potentiometer VR 3in series is connected with one end of the resistor R8 and the cathode of the diode D3, the anode of the diode D3 is connected in series with the anode of the diode D4 and is connected with the adjustable end of the potentiometer VR1, a trigger pin of the timer chip is connected with a connection point between the cathode of the diode D4 and the other end of the potentiometer VR 3in parallel, a reset pin RESTE and a power supply pin VCC of the timer chip are connected with the normally-open end of the relay RL2 through the diode D7, and the other end of; the second branch circuit is composed of a resistor R9, a resistor R10, diodes D5 and D6, an electrolytic capacitor EC5 and a potentiometer VR4, one end of the resistor R9 is connected with the potentiometer VR4 in series, the other end of the resistor R9 is connected with the normally-closed end of the relay RL1, a connection point between one end of the resistor R9 and one end of the potentiometer VR 3in series is connected with one end of a resistor R10 and the cathode of the diode D5, the anode of the diode D5 and the anode of the diode D6 are connected in series and connected with the adjustable end of the potentiometer VR4, the trigger pin of the timer chip is connected with the connection point between the cathode of the diode D6 and the other end of the potentiometer VR4 in parallel, the reset pin RESTE and the power supply pin VCC of the timer chip are connected with the normally-closed end of the relay RL1 through a diode D8, and the other; the threshold pin THR of the timer chip is connected with a connection point between the electrolytic capacitor EC5 and the series connection of the cathodes of the diodes D4 and D6, the other end of the electrolytic capacitor EC5 is grounded, the control pin CTRL of the timer chip is connected with the capacitor C2, the other end of the capacitor C2 is grounded, the discharge pin DIS of the timer chip is connected with the other end of the resistor R11, the threshold pin THR of the timer chip is connected with the trigger pin, and the output pin OUT of the timer chip is connected with the input end of the photoelectric coupler control circuit 4.
The optoelectronic coupler control circuit 4 comprises an optoelectronic coupler, a bidirectional thyristor, a resistor R11, a resistor R12 and a resistor R13, one end of the resistor R12 is connected with a collector of the optoelectronic coupler, a G pole of the bidirectional thyristor is connected with one end of the resistor R13 in series, a connecting point between the G pole of the bidirectional thyristor and one end of the resistor R13 in series is connected with an emitter of the optoelectronic coupler, a T1 pole of the bidirectional thyristor is connected with the other end of the resistor R13 in series, a connecting point between the T1 pole of the bidirectional thyristor and one end of the resistor R13 in series is connected with an alternating current N end of the voltage-stabilized power supply module 1, a cathode of the optoelectronic coupler is connected with a grounding end, an anode of the optoelectronic coupler is connected with one end of the resistor R11, and the other end of the.
One end of the electric fan 5 is connected with the alternating current L end of the voltage-stabilized power supply module 1, and the other end of the electric fan 5 is connected with one end of the resistor R12 and the T2 pole of the bidirectional triode thyristor.
The multivibrator module 3 adopts NE555, the temperature control circuit module 2 adopts a four-operational amplifier LM324, the temperature sensor adopts AD590, and the photoelectric coupler adopts MOC 3061; the bidirectional controllable silicon adopts BT138, and the three-terminal voltage regulator adopts LM 7812.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The temperature-controlled gust fan control circuit is characterized by comprising a voltage-stabilized power supply module (1), a temperature-controlled circuit module (2), a multivibrator module (3), a photoelectric coupler control circuit (4) and an electric fan (5), wherein the input end of the temperature-controlled circuit module (2) is connected with the output end of the voltage-stabilized power supply module (1), the output end of the temperature-controlled circuit module (2) is connected with the input end of the multivibrator module (3), the output end of the multivibrator module (3) is connected with the input end of the photoelectric coupler control circuit (4), and the photoelectric coupler control circuit (4) is connected with the electric fan (5).
2. The temperature-controlled gust fan control circuit according to claim 1, wherein the regulated power supply module (1) comprises a 12V dual-output transformer, a capacitor C1, a three-terminal regulator 7812U4, a bridge VC and an electrolytic capacitor EC1, an electrolytic capacitor EC2, an electrolytic capacitor EC3, and an electrolytic capacitor EC4, wherein the input end L and N of the regulated power supply module (1) are sequentially connected to the 12V dual-output transformer, the output end of the 12V dual-output transformer is connected in parallel to the two ends of the AC end of the bridge VC, the output end of the bridge VC is connected in parallel with the electrolytic capacitors EC1 and EC2 and EC4 in series, the +/-15V direct current is output, the center tap of the 12V dual-output transformer is grounded, the output end V-of the bridge VC is connected with the input end of the LM7812 three-terminal regulator U4, the output pin of the regulator U4 is connected in parallel with the capacitor C1 and the electrolytic capacitor EC4, the grounding pin of, the three-terminal regulator U4 outputs +12V DC.
3. The temperature-controlled gust fan control circuit according to claim 2, wherein the temperature-controlled circuit module (2) comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a four operational amplifier LM324, transistors Q1 and Q2, relays RL1 and RL2, diodes D1 and D2, a temperature sensor AD590, potentiometers VR1 and VR2, wherein one end of the resistor R1 is connected with the power output terminal-15V, the other end of the resistor R is connected with the temperature sensor AD590, the other end of the temperature sensor AD590 is connected with one end of the resistor R2 and the LM 3IN parallel and connected with the 1IN + LM pin of the four operational amplifier LM324, the other end of the resistor R2 is connected with the VCC of the four operational amplifier LM324 IN series, the other end of the resistor R3 is connected with one end of the resistor R4 IN series, the connection point between the other end of the resistor R3 and one end of the resistor R4 IN series is connected with the IN 2 + IN 3 +, the other end of the resistor R4 is connected with the 1OUT end of the four-operational amplifier LM324, the GND end of the four-operational amplifier LM324 is connected with the power supply output end-15V, the potentiometers VR1 and VR2 are connected IN parallel with the output end of the three-terminal regulator U4, the output end of the potentiometer VR1 is connected with the 3IN + end of the four-operational amplifier LM324, the output end of the potentiometer VR2 is connected with the 2 IN-end of the four-operational amplifier LM324, the 3OUT end of the four-operational amplifier LM324 is connected with one end of the resistor R6, the other end of the resistor R6 is connected with the base electrode of the triode Q1, the collector electrode of the triode Q1 is connected with one end of the relay RL2, the other end of the relay RL2 is connected with the +12V of the three-terminal regulator U; the 2OUT end of the four-operational amplifier LM324 is connected with one end of a resistor R5, the other end of the resistor R5 is connected with a base electrode of a triode Q2, a collector electrode of the triode Q2 is connected with one end of a relay RL1, the other end of the relay RL1 is connected with +12V of the input end of a three-terminal regulator U4, two ends of the relay RL1 are connected with a diode D1 in parallel, an emitter electrode of the triode Q2 is grounded, a normally closed end of the relay RL1 COM end and a normally closed end of a relay RL2 are connected in series and connected with a diode D8, a normally open end of the RL2 is connected with a diode D7, diodes D7 and D8 form an OR gate, a COM end of the relay RL2 is connected with +12V of.
4. A temperature controlled gust fan control circuit according to claim 3, the multivibrator module (3) comprises a timer U1, a first branch routing resistor R7, a resistor R8, diodes D3 and D4, an electrolytic capacitor EC5 and a potentiometer VR4, wherein one end of the resistor R7 is connected with the potentiometer VR 3in series, the other end of the resistor R7 is connected with the normally-open end of the relay RL2, a connecting point between one end of the resistor R7 and one end of the potentiometer VR 3in series is connected with one end of the resistor R8 and the cathode of the diode D3, the anode of the diode D3 is connected with the anode of the diode D4 in series and is connected with the adjustable end of the potentiometer VR1, the trigger pin of the timer chip is connected with a connection point between the cathode of a diode D4 and the parallel connection of the other end of a potentiometer VR3, a reset pin RESTE and a power supply pin VCC of the timer chip are connected with the normally open end of a relay RL2 through a diode D7, and the other end of a resistor R8 is connected with a discharge pin DIS of the timer chip; the second branch circuit is composed of a resistor R9, a resistor R10, diodes D5 and D6, an electrolytic capacitor EC5 and a potentiometer VR4, one end of the resistor R9 is connected with the potentiometer VR4 in series, the other end of the resistor R9 is connected with the normally-closed end of the relay RL1, a connection point between one end of the resistor R9 and one end of the potentiometer VR 3in series is connected with one end of a resistor R10 and the cathode of the diode D5, the anode of the diode D5 and the anode of the diode D6 are connected in series and connected with the adjustable end of the potentiometer VR4, the trigger pin of the timer chip is connected with the connection point between the cathode of the diode D6 and the other end of the potentiometer VR4 in parallel, the reset pin RESTE and the power supply pin VCC of the timer chip are connected with the normally-closed end of the relay RL1 through a diode D8, and the other; the threshold pin THR of the timer chip is connected with a connection point between the electrolytic capacitor EC5 and the series connection of the cathodes of the diodes D4 and D6, the other end of the electrolytic capacitor EC5 is grounded, the control pin CTRL of the timer chip is connected with the capacitor C2, the other end of the capacitor C2 is grounded, the discharge pin DIS of the timer chip is connected with the other end of the resistor R11, the threshold pin THR of the timer chip is connected with the trigger pin, and the output pin OUT of the timer chip is connected with the input end of the photoelectric coupler control circuit (4).
5. The temperature-controlled gust fan control circuit according to claim 4, wherein the photocoupler control circuit (4) comprises a photocoupler, a bidirectional thyristor, a resistor R11, a resistor R12 and a resistor R13, one end of the resistor R12 is connected with a collector of the photocoupler, a G pole of the bidirectional thyristor is connected in series with one end of the resistor R13, a connection point between the G pole of the bidirectional thyristor and one end of the resistor R13 in series is connected with an emitter of the photocoupler, a T1 pole of the bidirectional thyristor is connected in series with the other end of the resistor R13, a connection point between the T1 pole of the bidirectional thyristor and one end of the resistor R13 in series is connected with an alternating current N end of the regulated power supply module (1), a cathode of the photocoupler is connected with a ground terminal, an anode of the photocoupler is connected with one end of the resistor R11, and the other end of the resistor R11 is connected with an.
6. The temperature-controlled gust fan control circuit according to claim 5, wherein one end of the electric fan (5) is connected to the AC L end of the regulated power supply module (1), and the other end of the electric fan (5) is connected to one end of the resistor R12 and the T2 pole of the triac.
7. The temperature-controlled gust fan control circuit according to claim 6, wherein the multivibrator module (3) is NE555, the temperature control circuit module (2) is four operational amplifiers LM324, the temperature sensor is AD590, the photocoupler is MOC 3061; the bidirectional controllable silicon adopts BT138, and the three-terminal voltage regulator adopts LM 7812.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910738683.3A CN110652659A (en) | 2019-08-12 | 2019-08-12 | Control circuit of temperature control gust fan |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910738683.3A CN110652659A (en) | 2019-08-12 | 2019-08-12 | Control circuit of temperature control gust fan |
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| CN110652659A true CN110652659A (en) | 2020-01-07 |
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| CN201910738683.3A Pending CN110652659A (en) | 2019-08-12 | 2019-08-12 | Control circuit of temperature control gust fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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