Ion quantity intelligent output control circuit for ion generator

Abstract

The utility model discloses an ion quantity intelligent output control circuit used for an ion generator, comprising a power supply circuit used for processing a direct current input voltage Vin into a direct current output voltage Vout according to a voltage of a feedback terminal; the high-voltage alternating current generating circuit is connected with the power supply output end of the power supply circuit and is used for oscillating and boosting the direct-current output power into alternating-current high-voltage power Vh for driving an ion generator; the sensor is used for detecting use environment parameters of the ion generator; the main control chip is connected with the sensor and is used for acquiring environmental parameters; the voltage feedback circuit comprises an intelligent voltage regulating chip connected between the main control chip and the feedback end of the power supply circuit, and is used for performing protocol communication with the main control chip to obtain environmental parameters; and correspondingly outputting feedback voltage to the feedback end of the power supply circuit according to the environmental parameters so as to adjust the magnitude of the alternating-current high voltage Vh, thereby intelligently adjusting the quantity of ions output by the ion generator. The circuit structure is simple, manual adjustment by a user is not needed, and operation and use are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to control circuit technical field especially relates to a kind of ion quantity intelligent output control circuit for ion generator. BACKGROUND

[0002] Ion generator is the high voltage transformer that utilizes high voltage and is boosted to the required high voltage after power frequency voltage and is ionized to air, release to the air in surrounding and purify air.Ion generator generates ion quantity when working and the size of the alternating high voltage of driving ion generator work is proportional, therefore, the alternating high voltage provided to ion generator can be adjusted to correspond to adjust the ion quantity generated by ion generator.

[0003] In the driving control circuit of existing ion generator, by setting adjustable resistance in power supply circuit, the resistance value of adjustable resistance is changed using manual operation, and then the size of high voltage generated by driving control circuit is changed, to change the ion quantity generated by ion generator.The existing technology has the following deficiencies:1, adjustable resistance is a kind of resistor that changes resistance value by rotating or moving resistor knob or sliding piece, which needs manual adjustment operation, and the operation is inconvenient to use.2, user cannot quantitatively change the size of adjustable resistance according to use environment parameters, so that driving control circuit is difficult to meet the actual use demand of ion generator intelligentization and humanization. UTILITY MODEL CONTENTS

[0004] The utility model aims at at least solving one of the technical problems existing in prior art, and proposes a kind of ion quantity intelligent output control circuit for ion generator.

[0005] The utility model proposes a kind of ion quantity intelligent output control circuit for ion generator, characterized by comprising:

[0006] Power supply circuit has power input end, power output end and feedback end, for processing direct current input electric Vin as direct current output electric Vout according to the voltage of feedback end;

[0007] High-voltage alternating-current generating circuit connected with the power output end of power supply circuit, for oscillating and boosting direct current output electric Vout as the alternating high voltage Vh for driving ion generator;

[0008] Sensor is used to detect ion generator use environment parameter;

[0009] Main control chip connected with sensor is used to obtain environment parameter;

[0010] The voltage feedback circuit comprises an intelligent voltage regulating chip connected between the main control chip and the feedback end of the power supply circuit, is used for acquiring environmental parameters by communicating with the main control chip, and outputs feedback voltage to the feedback end of the power supply circuit according to the environmental parameters to adjust the size of the alternating high voltage Vh.

[0011] In some preferred embodiments, the power supply circuit comprises a power supply chip, the DC output voltage Vout output by the power supply output end of the power supply chip is adjusted according to the voltage of the feedback end, the power supply output end of the power supply chip is connected with a diode D7, and the power supply input end is externally connected with the DC input voltage Vin through a filter circuit.

[0012] In some preferred embodiments, the power supply circuit further comprises a switching circuit, the switching circuit comprises a control switch Q0 connected to the power supply output end of the power supply chip, the control end of the control switch Q0 is connected to the common end of two voltage dividing resistors R23 and R22, the voltage dividing resistor R23 is connected to the power supply output end of the power supply chip through the diode D7, and the voltage dividing resistor R22 is connected to the enable end EN.

[0013] In some preferred embodiments, the enable end EN is connected to one control port of the main control chip U1.

[0014] In some preferred embodiments, an RC filter is further connected to the power supply output end of the power supply chip, and the RC filter comprises a resistor R15 and a capacitor C11 connected in parallel between the cathode of the diode D7 and the feedback end.

[0015] In some preferred embodiments, the number of sensors is one or more, and the sensors are temperature sensors, humidity sensors or air quality sensors.

[0016] In some preferred embodiments, the output end of the intelligent voltage regulating chip U2 is connected to the feedback end of the power supply chip, a resistor R18 and a capacitor C12 are connected in series between the output end of the intelligent voltage regulating chip U2 and the ground, and the common end of the resistor R18 and the capacitor C12 is externally connected with the DC output voltage Vout.

[0017] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0018] The utility model discloses a voltage feedback circuit between the main control chip U3 and the feedback end FB1 of the power supply chip U1, and the voltage feedback circuit automatically changes the voltage of the feedback end FB1 according to the environmental parameters detected by the sensor, and then adjusts the size of the DC output voltage Vout output by the power supply chip U1 to automatically adjust the size of the alternating high voltage Vh output by the high-voltage alternating-current generating circuit 3, and then the ion output of the ion generator is intelligently adjusted according to the sensor. The circuit structure is simple, and the user does not need to manually adjust, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the principle block diagram of the ion quantity intelligent output control circuit.

[0020] Figure 2 is the circuit schematic diagram of one embodiment of the high-voltage alternating current generating circuit.

[0021] Figure 3 is the partial circuit schematic diagram of the ion quantity intelligent output control circuit when the high-frequency alternating current generating circuit is not drawn. DETAILED DESCRIPTION

[0022] To further illustrate the technical means and effects taken by the present application to achieve the predetermined purpose, the specific embodiments, structures, features and effects according to the present application are described in detail below in combination with the drawings and preferred embodiments. In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0023] The utility model discloses a kind of ion quantity intelligent output control circuit (abbreviation "control circuit") for ion generator, generates the alternating current high voltage required to drive ion generator work, can automatically according to the environmental parameter detected by sensor to intelligently adjust the size of alternating current high voltage to realize the intelligent output of ion quantity generated by ion generator, without user manual adjustment, it is convenient to operate and use.

[0024] As shown in Figures 1-3 The control circuit specifically includes: a power supply circuit 1 for processing the direct current input Vin into direct current output Vout according to the voltage of feedback end FB1;High-voltage alternating current generating circuit 3 connected to the output end of power supply circuit 1, for oscillating and boosting the direct current output Vout into alternating current high voltage Vh for driving ion generator;Sensor for detecting ion generator use environment parameters;Master control chip U3 connected with the sensor, for obtaining the environmental parameters detected by the sensor;Voltage feedback circuit 2 including intelligent voltage regulating chip U2, connected between master control chip U3 and feedback end FB1 of power supply circuit 1, for obtaining the environmental parameters detected by the sensor through protocol communication with master control chip U3, and adjusting the voltage of feedback end FB1 of power supply circuit 1 according to the environmental parameters, adjusting the size of alternating current high voltage Vh output by high-voltage alternating current generating circuit 3 by adjusting the size of direct current output Vout, and then achieving intelligent adjustment of ion output of ion generator according to the sensor.

[0025] The power supply circuit 1 comprises a power supply chip U1, for example, using the AP2962 chip of ChipPeng Microelectronics Co., Ltd., the first pin of which is a feedback end FB1, the seventh and eighth pins of which are power input ends connected to a direct current input Vin through a first filter circuit (including capacitors C7, CE1 and C8 arranged in parallel), and the third and fourth pins of which are power output ends connected with a diode D7. When the voltage set at the feedback end FB1 of the power supply chip U1 is different, the direct current output Vout output by the output end of the power supply chip U1 will be adjusted correspondingly according to the voltage of the feedback end FB1. Therefore, the voltage feedback circuit 2 is used to automatically adjust the voltage of the feedback end FB1 of the power supply chip U1, so as to adjust the size of the direct current output Vout output by the output end of the power supply chip U1.

[0026] The power supply circuit 1 further comprises a switching circuit, which comprises a control switch Q0 (for example, the control switch Q0 is an N-type MOS tube) connected to the output end of the power supply chip U1, the control end of the control switch Q0 is connected to the common end of a voltage dividing resistor R23 and a voltage dividing resistor R22, the voltage dividing resistor R23 is connected to the output end of the power supply chip U1 through a diode D7, and the voltage dividing resistor R22 is connected to an enable end EN. By changing the potential of the enable end EN, the control switch Q0 can be made to be in conduction or cut-off, and then the control switch Q0 is used to control the output or stop of the direct current output Vout, so as to correspondingly control the start or stop of the ion generator.

[0027] The enable end EN is usually connected to a control port of the main control chip U1, and the main control chip U1 outputs a low level or a high level to the enable end EN to adjust the state of the control switch Q0. For example, when the main control chip U1 outputs a low level to the enable end EN, the control end of the control switch Q0 is at a low level and not in conduction, so that the direct current output Vout output by the power supply chip U1 cannot be output to the high-voltage alternating current generating circuit 3. Conversely, when the main control chip U1 outputs a high level to the enable end EN, the control end of the control switch Q0 is at a low level and in conduction, so that the direct current output Vout output by the power supply chip U1 is output to the high-voltage alternating current generating circuit 3, and the ion generator starts to work.

[0028] An RC filter is further connected to the power supply output end of the power supply chip U1, which comprises a resistor R15 and a capacitor C11 connected in parallel between the cathode of the diode D7 and the feedback end FB1, and is used to filter the direct current output Vout output by the power supply chip U1.

[0029] The number of sensors can be one or more, and the sensors are temperature sensors, humidity sensors or air quality sensors. Each sensor is connected to a data acquisition port of the main control chip U3, and transmits the detected environmental parameters to the main control chip U3.

[0030] For example Figure 3 As shown, only one sensor is drawn, and two pins of the sensor are connected to the data collection port of the master chip U3 through resistors R28 and R29, respectively.

[0031] The master chip U3 is usually implemented by a single-chip microcomputer. The master chip U3 mainly has two functions: one is to collect the environmental parameters detected by the sensor, and the other is to communicate with the intelligent voltage feedback chip U2 of the voltage feedback circuit 2 according to a protocol, and transmit the environmental parameters detected by the sensor to the intelligent voltage feedback chip U2.

[0032] The voltage feedback circuit 2 is used to output a corresponding feedback voltage to the feedback end FB1 of the power supply circuit 1 according to the environmental parameters obtained from the master chip U3, so as to change the size of the direct current output Vout of the power supply circuit 1 correspondingly.

[0033] The voltage feedback circuit 2 includes the intelligent voltage feedback chip U2 and its corresponding peripheral circuit. As shown, Figure 3 The intelligent voltage feedback chip U2 communicates with the master chip U3 according to a protocol to obtain the environmental parameters from the master chip U3. The output end FB2 of the intelligent voltage feedback chip U2 is connected to the feedback end FB1 of the power supply chip U1, and the resistor R18 and the capacitor C12 are connected in series between the output end FB2 and the ground, and the common end of the resistor R18 and the capacitor C12 is connected to the direct current output Vout.

[0034] As shown, Figure 2 In one embodiment of the high-voltage alternating current generating circuit 3, the high-voltage alternating current generating circuit 3 includes a high-voltage transformer T1, a transistor Q1 and a transistor Q2. The base of the transistor Q1 is connected to the direct current output Vout through the resistor R8, and the base of the transistor Q2 is connected to the direct current output Vout through the resistor R9. The emitter of the transistor Q1 and the emitter of the transistor Q2 are both connected to the ground, and the collector of the transistor Q1 and the collector of the transistor Q2 are connected through the capacitor C7. The high-voltage transformer T1 includes a first primary winding N1, a second primary winding N2, a third primary winding N2 and a secondary winding N4. The same name end and the different name end of the first primary winding N1 are connected to the base of the transistor Q1 and the base of the transistor Q2, respectively. The same name end of the second primary winding N2 and the different name end of the third primary winding N3 are connected to the output end Vb of the inductor L2, respectively. The different name end of the second primary winding N2 and the same name end of the third primary winding N3 are connected to the collector of the transistor Q1 and the collector of the transistor Q2, respectively.

[0035] The working principle of the high-voltage AC generating circuit 3 is as follows: the DC output voltage Vout is applied to the collector of the transistor Q1 through the second primary winding N2 and to the collector of the transistor Q2 through the third primary winding N3, and the phases of the second primary winding N2 and the third primary winding N3 are completely opposite; the first primary winding N1 is an exciting starting winding, and reaches the base of the transistor Q1 and the base of the transistor Q2 through resistors R9 and R10 respectively, thereby alternately starting the transistor Q1 and the transistor Q2; after the transistor Q1 and the transistor Q2 are alternately turned on, the voltage waveforms with opposite phases are output through the second primary winding N2 and the third primary winding N3, and the sine waves with opposite phases are generated in the secondary winding N4 of the transformer T1, and at the same time, due to the high number ratio of the secondary winding N4, the high-voltage AC Vh is output from the secondary winding N4 to the ion generator to drive the ion generator to work.

[0036] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A smart ion quantity output control circuit for an ion generator, characterized in that, include: The power supply circuit has a power input terminal, a power output terminal, and a feedback terminal, and is used to process the DC input voltage Vin into a DC output voltage Vout based on the voltage at the feedback terminal. A high-voltage AC generating circuit connected to the power output terminal of the power supply circuit is used to oscillate and boost the DC output voltage Vout into a high-voltage AC voltage Vh for driving the ion generator. Sensors are used to detect environmental parameters in which the ion generator is used; The main control chip, connected to the sensor, is used to acquire environmental parameters; The voltage feedback circuit includes an intelligent voltage regulating chip connected between the main control chip and the feedback terminal of the power supply circuit. It is used to communicate with the main control chip to obtain environmental parameters and output a feedback voltage to the feedback terminal of the power supply circuit according to the environmental parameters to adjust the magnitude of the AC high voltage Vh.

2. The intelligent ion quantity output control circuit according to claim 1, characterized in that, The power supply circuit includes a power chip. The DC output voltage Vout of the power chip's power output terminal is adjusted according to the voltage at the feedback terminal. A diode D7 is connected to the power output terminal of the power chip, and the power input terminal is connected to an external DC input voltage Vin through a filter circuit.

3. The intelligent ion quantity output control circuit according to claim 2, characterized in that, The power supply circuit also includes a switching circuit, which includes a control switch Q0 connected to the power output terminal of the power chip. The control terminal of the control switch Q0 is connected to the common terminal of two voltage divider resistors R23 and R22. The voltage divider resistor R23 is connected to the power output terminal of the power chip through diode D7, while the voltage divider resistor R22 is connected to the enable terminal EN.

4. The intelligent ion quantity output control circuit according to claim 3, characterized in that, The enable terminal EN is connected to a control port of the main control chip U1.

5. The intelligent ion quantity output control circuit according to claim 2, characterized in that, An RC filter is also connected to the power output terminal of the power chip. The RC filter includes a resistor R15 and a capacitor C11 connected in parallel between the cathode of diode D7 and the feedback terminal.

6. The intelligent ion quantity output control circuit according to claim 1, characterized in that, The number of sensors is one or more, and the sensors are temperature sensors, humidity sensors or air quality sensors.

7. The intelligent ion quantity output control circuit according to claim 1, characterized in that, The output terminal of the intelligent voltage regulator chip U2 is connected to the feedback terminal of the power supply chip. A resistor R18 and a capacitor C12 are connected in series between the output terminal of the intelligent voltage regulator chip U2 and ground. The common terminal of the resistor R18 and the capacitor C12 is connected to the external DC output voltage Vout.

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