CN216536234U - Ultraviolet sterilizing lamp control circuit - Google Patents
Ultraviolet sterilizing lamp control circuit Download PDFInfo
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- CN216536234U CN216536234U CN202123366789.7U CN202123366789U CN216536234U CN 216536234 U CN216536234 U CN 216536234U CN 202123366789 U CN202123366789 U CN 202123366789U CN 216536234 U CN216536234 U CN 216536234U
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Abstract
The utility model relates to the field of circuit control, in particular to an ultraviolet sterilizing lamp control circuit, which comprises: the negative end of the capacitor is grounded; a first power supply; a charging circuit, one end of which is connected to the first power supply and the other end of which is connected to the positive terminal of the capacitor, for charging the capacitor when the capacitance of the capacitor is less than or equal to a first threshold value; the discharge circuit is connected with the positive end of the capacitor at one end, is connected with the ultraviolet killing lamp at the other end, and is used for outputting driving voltage to the ultraviolet killing lamp to drive the ultraviolet killing lamp to work when the capacitance of the capacitor reaches a second threshold value; wherein the second threshold is greater than the first threshold. The circuit structure can not enable the ultraviolet sterilizing lamp to work all the time, can drive the ultraviolet sterilizing lamp to work at intervals, can play a role in sterilizing, and can save energy.
Description
Technical Field
The utility model relates to the field of circuit control, in particular to an ultraviolet sterilizing lamp control circuit.
Background
An ultraviolet sterilizing lamp, also known as an ultraviolet sterilizing lamp and an ultraviolet fluorescent lamp, is a lamp for sterilizing by using the sterilizing action of ultraviolet rays. The ultraviolet sterilizing lamp can radiate ultraviolet rays outwards, and can be used for sterilizing water, air, clothes and the like due to the strong sterilizing capability of the ultraviolet rays.
When the ultraviolet sterilizing lamp is used for sterilization, if the ultraviolet sterilizing lamp is always turned on for sterilization, a large amount of electric energy is consumed. In practical application, the ultraviolet sterilizing lamp does not need to be turned on all the time, and the ultraviolet sterilizing lamp is turned on at intervals for sterilization, so that the sterilizing effect can be well achieved, and meanwhile, the energy loss is reduced.
SUMMERY OF THE UTILITY MODEL
Therefore, the present invention is to solve the technical problem that a large amount of power is consumed when the ultraviolet lamp is turned on for disinfection, and therefore, the present invention provides a control circuit for an ultraviolet disinfection lamp, which comprises: the negative end of the capacitor is grounded; a first power supply; a charging circuit, one end of which is connected to the first power supply and the other end of which is connected to a positive terminal of the capacitor, for charging the capacitor when a capacitance of the capacitor is less than or equal to a first threshold;
the discharge circuit is connected with the positive end of the capacitor at one end, is connected with the ultraviolet killing lamp at the other end, and is used for outputting driving voltage to the ultraviolet killing lamp to drive the ultraviolet killing lamp to work when the capacitance of the capacitor reaches a second threshold value; wherein the second threshold is greater than the first threshold.
Optionally, the charging circuit comprises: a first charging circuit, one end of which is connected with the first power supply and the other end of which is connected with the positive terminal of the capacitor;
a second charging circuit, one end of which is connected with the first power supply and the other end of which is connected with the positive terminal of the capacitor;
and the disconnecting circuit is connected with the first charging circuit and used for disconnecting the first charging circuit when the capacitance of the capacitor is larger than or equal to a first threshold value.
Optionally, the first charging circuit comprises: the circuit comprises a first resistor, a second resistor and a first diode which are sequentially connected in series, wherein the first resistor is connected with a first power supply, and the cathode of the first diode is connected with the positive end of a capacitor;
the second charging circuit includes: the third resistor, the fourth resistor and the second diode are sequentially connected in series, the third resistor is connected with the first power supply, and the cathode of the second diode is connected with the positive end of the capacitor; the disconnection circuit includes:
the non-inverting input end of the operational amplifier is connected with the positive end of the capacitor, and the inverting input end of the operational amplifier is connected with the second power supply; wherein the voltage value of the second power supply is less than a first threshold;
one end of the fifth resistor is connected with the output end of the operational amplifier;
and a base electrode of the first triode is connected with the other end of the fifth resistor, a collector electrode of the first triode is connected between the first resistor and the second resistor, and an emitting electrode of the first triode is grounded.
Optionally, the discharge circuit comprises: a sixth resistor, one end of which is connected to the positive terminal of the capacitor;
the input end of the timing chip is connected with the other end of the sixth resistor and used for enabling the capacitor to output voltage at regular time;
a base electrode of the second triode is connected with the output end of the timing chip, and an emitting electrode of the second triode is grounded;
and the grid electrode of the first PMOS tube is connected with the collector electrode of the second triode, the source electrode of the first PMOS tube is connected with the third power supply, and the drain electrode of the first PMOS tube is connected with the output module.
Optionally, the ultraviolet germicidal lamp control circuit includes: the constant voltage circuit is connected with the first power supply at one end and the charging circuit at the other end and used for providing stable voltage for the charging circuit;
and the conducting circuit is connected with the constant voltage circuit and is used for switching on and off the constant voltage circuit.
Alternatively, the constant voltage circuit includes: a collector of the third triode is connected with the first power supply, and an emitter of the third triode is connected with the charging circuit;
the cathode of the voltage stabilizing diode is connected with the base electrode of the third triode, and the anode of the voltage stabilizing diode is grounded;
and one end of the seventh resistor is connected between the first power supply and the collector of the third triode, and the other end of the seventh resistor is connected between the cathode of the voltage stabilizing diode and the base of the third triode.
Optionally, the turn-on circuit includes: a source electrode of the second PMOS tube is connected with the first power supply, and a drain electrode of the second PMOS tube is connected with a collector electrode of the third triode;
one end of the eighth resistor is connected with the grid electrode of the second PMOS tube;
one end of the ninth resistor is connected between the grid electrode of the second PMOS tube and the eighth resistor, and the other end of the ninth resistor is connected between the first power supply and the source electrode of the second PMOS tube;
a collector of the fourth triode is connected with the other end of the eighth resistor, and an emitter of the fourth triode is grounded;
and the control circuit is connected with the base electrode of the fourth triode and is used for controlling the on-off of the fourth triode.
Optionally, the control circuit comprises: the first branch circuit comprises a tenth resistor and an eleventh resistor, the tenth resistor is connected with the eleventh resistor, the tenth resistor is connected with a third power supply, and the eleventh resistor is connected with a base electrode of a fourth triode;
the second branch circuit comprises a control module, an OR gate module and a fifth triode, the output end of the control module is connected with the first input end of the OR gate module, the output end of the OR gate module is connected with the base electrode of the fifth triode, the collector electrode of the fifth triode is connected between a tenth resistor and an eleventh resistor, and the emitter electrode of the fifth triode is grounded;
and the detection trigger circuit is connected with the second input end of the OR gate module and is used for outputting voltage according to whether people approach the OR gate module.
Optionally, the detection trigger circuit includes: an emitter of the sixth triode is grounded, and a collector of the sixth triode is connected with the second input end of the OR gate module;
the microwave module is connected with the base electrode of the sixth triode and used for outputting voltage according to whether a person approaches the sixth triode or not;
and one end of the twelfth resistor is connected between the collector of the sixth triode and the second input end of the OR gate module, and the other end of the twelfth resistor is connected with the third power supply.
Optionally, the method further comprises: and one end of the thirteenth resistor is connected between the collector of the sixth triode and the second input end of the OR gate module, and the other end of the thirteenth resistor is connected with the input end of the control module.
The technical scheme of the utility model has the following advantages:
according to the ultraviolet sterilizing lamp control circuit provided by the utility model, the capacitor is charged by the first power supply through the charging circuit, and the capacitor cannot generate driving voltage to drive the ultraviolet sterilizing lamp to work in the charging process. When the capacitance of the capacitor reaches a second threshold value, the capacitor drives the ultraviolet killing lamp to work through the discharging circuit, and when the capacitance of the capacitor is consumed to a first threshold value, the first power supply continues to charge the capacitor through the charging circuit, and the cycle is repeated. The circuit structure can not enable the ultraviolet sterilizing lamp to work all the time, can drive the ultraviolet sterilizing lamp to work at intervals, can play a role in sterilizing, and can save energy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a circuit diagram of an ultraviolet germicidal lamp control circuit in accordance with embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of the circuit of FIG. 1;
fig. 3 is an enlarged view of another part of the circuit in fig. 1.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides an ultraviolet germicidal lamp control circuit, as shown in fig. 1 and 2, including a capacitor C, a first power source 401, a charging circuit, and a discharging circuit. The negative terminal of the capacitor C is connected to the ground terminal, the positive terminal of the capacitor C is connected to one terminal of the charging circuit and one terminal of the discharging circuit, respectively, the other terminal of the charging circuit is connected to the first power source 401, and the first power source 401 charges the capacitor C through the charging circuit, so that the electric quantity of the capacitor C is increased. For example, the first power source 401 charges the capacitor C such that the capacitance of the capacitor C is from zero to a first threshold value and then from the first threshold value to a second threshold value. The other end of the discharge circuit can be connected with the ultraviolet killing lamp, and when the capacitance of the capacitor C reaches a certain value, the capacitor C releases the electric quantity through the discharge circuit to generate a driving voltage to drive the ultraviolet killing lamp to work. For example, when the capacitance of the capacitor C reaches the second threshold value, the capacitor C generates a driving voltage through the discharge circuit to drive the ultraviolet germicidal lamp to operate. The first threshold and the second threshold are both larger than zero, and the second threshold is larger than the first threshold.
When the charging circuit charges the capacitor C, the capacitor C is charged through a first preset time period, when the capacitance of the capacitor C reaches a second threshold value, the capacitor C is discharged through the discharging circuit, after the second preset time period, the capacitance of the capacitor C reaches the first threshold value, at the moment, discharging is stopped, and the first power supply continues to charge the capacitor C through the charging circuit. And the capacitor C is repeatedly charged and discharged, in a first preset time period, the capacitor C outputs the driving voltage without passing through the discharge circuit, the ultraviolet killing lamp stops working, and in a second preset time period, the capacitor C outputs the driving voltage with passing through the discharge circuit, and the ultraviolet killing lamp starts working. It should be noted that, a person skilled in the art may reasonably select the first preset time period, the second preset time period, the first threshold, and the second threshold according to actual situations, and the selection is not limited herein.
In summary, the capacitor is charged by the first power supply through the charging circuit, and the capacitor does not generate a driving voltage to drive the ultraviolet germicidal lamp to operate during the charging process. When the capacitance of the capacitor reaches a second threshold value, the capacitor drives the ultraviolet killing lamp to work through the discharging circuit, and when the capacitance of the capacitor is consumed to a first threshold value, the first power supply continues to charge the capacitor through the charging circuit, and the cycle is repeated. The circuit structure can not enable the ultraviolet sterilizing lamp to work all the time, can drive the ultraviolet sterilizing lamp to work at intervals, can play a role in sterilizing, and can save energy.
In one or more embodiments, the charging circuit includes a first charging circuit, a second charging circuit, and a disconnect circuit. One end of the first charging circuit is connected with the first power source 401, the other end of the first charging circuit is connected with the positive end of the capacitor C, one end of the second charging circuit is connected with the first power source 401, the other end of the second charging circuit is connected with the positive end of the capacitor C, the disconnecting circuit is connected with the first charging circuit, when the capacitance of the capacitor C is larger than or equal to the first threshold value, the first charging circuit is disconnected, the first charging circuit cannot normally charge the capacitor C, and only the second charging circuit is used for charging the capacitor C.
When the capacitor C is initially charged, the capacitance of the capacitor C is zero, and the first charging circuit and the second charging circuit charge the capacitor C. The capacitor C increases the time from zero capacitance to the first threshold value more than the time from zero capacitance to the second threshold value. The capacitor C is charged by the first charging circuit and the second charging circuit simultaneously, so that the time from the capacitance of the capacitor C to zero to the first threshold value can be reduced. When the capacitance of the capacitor C reaches the first threshold value, the disconnection circuit disconnects the first charging circuit, and only the second charging circuit is adopted to charge the capacitor C, so that the charge and discharge are reasonable.
In one or more embodiments, as shown in fig. 1 and 2, the first charging circuit includes a first resistor R1, a second resistor R2, and a first diode D1 connected in series in sequence, and the second charging circuit includes a third resistor R3, a fourth resistor R4, and a second diode D2 connected in series in sequence. The first resistor R1 is connected to the first power source 401, the cathode of the first diode D1 is connected to the positive terminal of the capacitor C, the third resistor R3 is connected to the first power source 401, and the cathode of the second diode D2 is connected to the positive terminal of the capacitor C.
The disconnection circuit comprises an operational amplifier 401, a fifth resistor R5 and a first triode 201, wherein the non-inverting input end of the operational amplifier 401 is connected with the positive electrode end of a capacitor C, the inverting input end of the operational amplifier 401 is connected with a second power supply 402, the output end of the operational amplifier 401 is connected with one end of a fifth resistor R5, the other end of the fifth resistor R5 is connected with the base electrode of the first triode 201, the collector electrode of the first triode 201 is connected between a first resistor R1 and a second resistor R2, and the emitter electrode of the first triode 201 is grounded. When the capacitance of the capacitor C reaches the first threshold, the voltage of the non-inverting input terminal of the operational amplifier 101 is greater than the voltage of the second power supply of the inverting input terminal, so that the output terminal of the operational amplifier 101 outputs a high voltage, and the first transistor 201 is turned on, and the first charging circuit is grounded and disconnected.
In one or more embodiments, as shown in fig. 1 and 2, the discharge circuit includes a sixth resistor R6, the timing chip 102, a second transistor 202, and a first PMOS transistor, one end of the sixth resistor R6 is connected to the positive terminal of the capacitor C, the other end of the sixth resistor R6 is connected to the input terminal of the timing chip 102, and the timing chip 102 may time output the voltage stored in the capacitor C according to a preset time period. The output end of the timing chip 102 is connected to the base of the second triode 202, the emitter of the second triode 202 is connected to the ground, the collector of the second triode 202 is connected to the gate of the first PMOS transistor, the source of the first PMOS transistor is connected to the third power 403, and the drain of the first PMOS transistor is connected to the output module 107. The number of the sixth resistor R6 is plural, and the charging and discharging time, that is, the first preset time period and the second preset time period can be adjusted by configuring the sixth resistor R6, the third resistor R3 and the fourth resistor R4 with corresponding resistance values.
The timing chip 102 outputs the voltage stored in the capacitor C at regular time, the second triode 202 is conducted to ground the gate of the first PMOS transistor, so that the first PMOS transistor is conducted, the third power 403 outputs the voltage to the output module 107, and the output module 107 further drives the ultraviolet disinfection lamp to work. The output module 107 may include a voltage boosting module (not shown) and a first communication interface, and the voltage output by the third power source 403 is amplified by the voltage boosting module to drive the ultraviolet germicidal lamp to operate. The upper computer (not shown) can be connected with the output module 107 through the first communication interface, when the ultraviolet sterilizing lamp works, the upper computer can display corresponding prompts on the display interface, and the upper computer records the starting times of the ultraviolet sterilizing lamp. Such as an icon that the uv kill lamp is on. In some embodiments, a fourteenth resistor R14 may be further connected between the timing chip 102 and the second transistor 202.
In one or more embodiments, as shown in fig. 1 and 2, the ultraviolet germicidal lamp control circuit includes a constant voltage circuit and a turn-on circuit. One end of the constant voltage circuit is connected to the first power supply 401, and the other end of the constant voltage circuit is connected to a charging circuit (including a first charging circuit and a second charging circuit), and the first power supply 401 can supply a stable voltage to the capacitor C through the constant voltage circuit. The conducting circuit is connected with the constant voltage circuit, and the constant voltage circuit can be conducted through the conducting or closing circuit.
As shown in fig. 2 and 3, the constant voltage circuit includes a third transistor 203, a zener diode 103, and a seventh resistor R7, wherein a collector of the third transistor 203 is connected to the first power source 401, an emitter of the third transistor 203 is connected to the charging circuit, a cathode of the zener diode 103 is connected to a base of the third transistor 203, an anode of the zener diode 103 is grounded, one end of the seventh resistor R7 is connected between the first power source 401 and the third transistor 203, and the other end of the seventh resistor R7 is connected to a cathode of the zener diode 103 and the third transistor 203. The third triode 203, the zener diode 103 and the seventh resistor R7 form a low-power precision constant voltage source, which supplies a stable voltage to the capacitor C to ensure the stability of the timing chip 102.
In one or more embodiments, as shown in fig. 1 and 3, the conducting circuit includes a second PMOS transistor 302, an eighth resistor R8, a ninth resistor R9, a fourth transistor 204, and a control circuit. The source of the second PMOS 302 is connected to the first power source 401, the drain of the second PMOS 302 is connected to the collector of the third transistor 203, the gate of the second PMOS 302 is connected to one end of an eighth resistor R8, the other end of the eighth resistor R8 is connected to the collector of the fourth transistor 204, the emitter of the fourth transistor 204 is grounded, the control circuit is connected to the base of the fourth transistor 204, and the control circuit can turn on or off the fourth transistor 204. One end of the ninth resistor R9 is connected between the gate of the second PMOS transistor 302 and the eighth resistor R8, and the other end of the ninth resistor R9 is connected between the first power supply 401 and the source of the second PMOS transistor 302. After the fourth transistor 204 is turned on, the eighth resistor R8 is shorted to ground, the voltage of the first power source 401 is divided by the eighth resistor R8 and the ninth resistor R9, a voltage difference is generated between the gate and the source of the second PMOS transistor 302, and the second PMOS transistor 302 is turned on, so that the first power source 401 charges the capacitor C.
In one or more embodiments, as shown in fig. 1 and 3, the control circuit includes a first branch, a second branch, and a detection trigger circuit. The first branch circuit comprises a tenth resistor R10 and an eleventh resistor R11, the tenth resistor R10 is connected with the eleventh resistor R11, the tenth resistor R10 is connected with the third power supply 403, the eleventh resistor R11 is connected with the base of the fourth triode 204, the second branch circuit comprises a control module 104, an OR gate module 105 and a fifth triode 205, the output end of the control module 104 is connected with the first input end of the OR gate module 105, the output end of the OR gate module 105 is connected with the base of the fifth triode 205, the collector of the fifth triode 205 is connected between the tenth resistor R10 and the eleventh resistor R11, and the emitter of the fifth triode 205 is grounded. The detection trigger circuit is connected to the second input terminal of the or gate module 105, and the detection trigger circuit is configured to output the voltage according to whether a person approaches the detection trigger circuit.
The control module 104 may be connected to an upper computer, and the upper computer may output high and low voltages to the MSCL of the control module 104 through infrared remote control. The detection trigger circuit may be configured to detect whether a person approaches, and output a high voltage to the or gate module 105 if the person approaches, and output a low voltage to the or gate module 105 if no person approaches. The or gate module 105 outputs the voltage to the base of the fifth transistor 205 according to the voltage levels of the first input terminal and the second input terminal, so as to control whether the fifth transistor 205 is turned on. For example, if the detection trigger circuit detects that a person approaches, the detection trigger circuit outputs a high voltage to the second input terminal of the or gate module 105, or the gate module 105 outputs a high voltage to the base of the fifth transistor 205, so as to turn on the fifth transistor 205, ground the third power supply 403, and turn off the fourth transistor 204, thereby turning off the power supply of the uv-killing lamp. In some embodiments, a fifteenth resistor R15 may be connected between the or gate module 105 and the fifth transistor 205.
In one or more embodiments, as shown in fig. 1 and 2, the detection trigger circuit includes a sixth transistor 206, a microwave module 106, and a twelfth resistor R12, an emitter of the sixth transistor 206 is grounded, a collector of the sixth transistor 206 is connected to the second input terminal of the or gate module 105, the microwave module 106 is connected to a base of the sixth transistor 206, one end of the twelfth resistor R12 is connected between the collector of the sixth transistor 206 and the second input terminal of the or gate module 105, and the other end of the twelfth resistor R12 is connected to the third power source 403. The microwave module 106 outputs a low voltage when it detects that someone is approaching and outputs a high voltage when nobody is approaching.
When the base of the sixth transistor 206 receives the low voltage, the sixth transistor 206 is turned off, and the third power source 403 outputs the high voltage to the or gate module 105, so that the or gate module 105 outputs the high voltage to the fifth transistor 205, and the fifth transistor 205 is turned on. When the base of the sixth transistor 206 receives the high voltage, the sixth transistor 206 is turned on, so that the third power supply 403 is grounded, and the second terminal of the or gate module 105 receives the low voltage.
In some embodiments, as shown in fig. 1 and 3, a thirteenth resistor R13 is also included. One end of the thirteenth resistor R13 is connected between the sixth transistor 206 and the second input terminal of the or gate module 105, and the other end of the thirteenth resistor R13 is connected to the input terminal of the control module 104. When the third power source 403 outputs a high voltage to the or gate module 105, the voltage is transmitted to the control module 104 through the thirteenth resistor R13. The control module 104 is connected with an upper computer, and after the control module 104 receives the high voltage from the thirteenth resistor R13, the upper computer can record the times that a person approaches the microwave module 106, and one is added when the person approaches one.
The first power source 401 may supply a voltage of 12V, the third power source 403 may supply a voltage of 5V, and the second power source 402 may be a voltage of the first power source 401 via a constant voltage circuit, a resistor, or the like.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (10)
1. An ultraviolet germicidal lamp control circuit comprising:
the negative end of the capacitor is grounded;
a first power supply;
a charging circuit, one end of which is connected to the first power supply and the other end of which is connected to the positive terminal of the capacitor, for charging the capacitor when the capacitance of the capacitor is less than or equal to a first threshold value;
the discharge circuit is connected with the positive end of the capacitor at one end, is connected with the ultraviolet killing lamp at the other end, and is used for outputting driving voltage to the ultraviolet killing lamp to drive the ultraviolet killing lamp to work when the capacitance of the capacitor reaches a second threshold value; wherein the second threshold is greater than the first threshold.
2. The ultraviolet germicidal lamp control circuit as recited in claim 1 wherein said charging circuit comprises:
a first charging circuit, one end of which is connected with the first power supply and the other end of which is connected with the positive terminal of the capacitor;
a second charging circuit, one end of which is connected with the first power supply and the other end of which is connected with the positive terminal of the capacitor;
and the disconnecting circuit is connected with the first charging circuit and used for disconnecting the first charging circuit when the capacitance of the capacitor is larger than or equal to a first threshold value.
3. The ultraviolet germicidal lamp control circuit as recited in claim 2 wherein said first charging circuit comprises: the circuit comprises a first resistor, a second resistor and a first diode which are sequentially connected in series, wherein the first resistor is connected with a first power supply, and the cathode of the first diode is connected with the positive end of a capacitor;
the second charging circuit includes: the third resistor, the fourth resistor and the second diode are sequentially connected in series, the third resistor is connected with the first power supply, and the cathode of the second diode is connected with the positive end of the capacitor; the disconnection circuit includes:
the non-inverting input end of the operational amplifier is connected with the positive end of the capacitor, and the inverting input end of the operational amplifier is connected with the second power supply; wherein the voltage value of the second power supply is less than a first threshold;
one end of the fifth resistor is connected with the output end of the operational amplifier;
and a base electrode of the first triode is connected with the other end of the fifth resistor, a collector electrode of the first triode is connected between the first resistor and the second resistor, and an emitting electrode of the first triode is grounded.
4. The ultraviolet germicidal lamp control circuit as recited in any of claims 1-3 wherein the discharge circuit includes:
one end of the sixth resistor is connected to the positive end of the capacitor;
the input end of the timing chip is connected with the other end of the sixth resistor and used for enabling the capacitor to output voltage at regular time;
a base electrode of the second triode is connected with the output end of the timing chip, and an emitting electrode of the second triode is grounded;
and the grid electrode of the first PMOS tube is connected with the collector electrode of the second triode, the source electrode of the first PMOS tube is connected with the third power supply, and the drain electrode of the first PMOS tube is connected with the output module.
5. The ultraviolet germicidal lamp control circuit as claimed in any of claims 1-3 wherein said ultraviolet germicidal lamp control circuit comprises:
the constant voltage circuit is connected with the first power supply at one end and the charging circuit at the other end and used for providing stable voltage for the charging circuit;
and the conducting circuit is connected with the constant voltage circuit and is used for switching on and off the constant voltage circuit.
6. The ultraviolet germicidal lamp control circuit as recited in claim 5 wherein said constant voltage circuit comprises:
a collector of the third triode is connected with the first power supply, and an emitter of the third triode is connected with the charging circuit;
the cathode of the voltage stabilizing diode is connected with the base electrode of the third triode, and the anode of the voltage stabilizing diode is grounded;
and one end of the seventh resistor is connected between the first power supply and the collector of the third triode, and the other end of the seventh resistor is connected between the cathode of the voltage stabilizing diode and the base of the third triode.
7. The ultraviolet germicidal lamp control circuit as recited in claim 6 wherein said turn-on circuit comprises:
a source electrode of the second PMOS tube is connected with the first power supply, and a drain electrode of the second PMOS tube is connected with a collector electrode of the third triode;
one end of the eighth resistor is connected with the grid electrode of the second PMOS tube;
one end of the ninth resistor is connected between the grid electrode of the second PMOS tube and the eighth resistor, and the other end of the ninth resistor is connected between the first power supply and the source electrode of the second PMOS tube;
a collector of the fourth triode is connected with the other end of the eighth resistor, and an emitter of the fourth triode is grounded;
and the control circuit is connected with the base electrode of the fourth triode and is used for controlling the on-off of the fourth triode.
8. The ultraviolet germicidal lamp control circuit as recited in claim 7 wherein said control circuit comprises:
the first branch circuit comprises a tenth resistor and an eleventh resistor, the tenth resistor is connected with the eleventh resistor, the tenth resistor is connected with a third power supply, and the eleventh resistor is connected with a base electrode of a fourth triode;
the second branch circuit comprises a control module, an OR gate module and a fifth triode, the output end of the control module is connected with the first input end of the OR gate module, the output end of the OR gate module is connected with the base electrode of the fifth triode, the collector electrode of the fifth triode is connected between a tenth resistor and an eleventh resistor, and the emitter electrode of the fifth triode is grounded;
and the detection trigger circuit is connected with the second input end of the OR gate module and is used for outputting voltage according to whether people approach the OR gate module.
9. The uv kill-lamp control circuit of claim 8, wherein the detection trigger circuit comprises:
an emitter of the sixth triode is grounded, and a collector of the sixth triode is connected with the second input end of the OR gate module;
the microwave module is connected with the base electrode of the sixth triode and used for outputting voltage according to whether a person approaches the sixth triode or not;
and one end of the twelfth resistor is connected between the collector of the sixth triode and the second input end of the OR gate module, and the other end of the twelfth resistor is connected with the third power supply.
10. The ultraviolet germicidal lamp control circuit as claimed in claim 9 further comprising:
and one end of the thirteenth resistor is connected between the collector of the sixth triode and the second input end of the OR gate module, and the other end of the thirteenth resistor is connected with the input end of the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123366789.7U CN216536234U (en) | 2021-12-29 | 2021-12-29 | Ultraviolet sterilizing lamp control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123366789.7U CN216536234U (en) | 2021-12-29 | 2021-12-29 | Ultraviolet sterilizing lamp control circuit |
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| Publication Number | Publication Date |
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| CN216536234U true CN216536234U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123366789.7U Active CN216536234U (en) | 2021-12-29 | 2021-12-29 | Ultraviolet sterilizing lamp control circuit |
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| CN (1) | CN216536234U (en) |
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2021
- 2021-12-29 CN CN202123366789.7U patent/CN216536234U/en active Active
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