A full-bridge voltage-doubling boost circuit for an ion blower

Abstract

The utility model discloses a full-bridge voltage doubling and boosting circuit for an ion blower, including a full-bridge power device IC2 and a transformer T1, wherein the 1st and 2nd pins of the full-bridge power device IC2 are respectively connected to the XH1 signal and the XH2 signal as signal control ports, the 8th pin of the full-bridge power device IC2 is connected to the diode D1, the diode D2, and the inductor L1, the 6th pin of the full-bridge power device IC2 is connected to the diode D3, the diode D4, and the capacitor C1, the inductor L1 and the capacitor C1 form a series resonant network, the capacitor C1 and the primary side inductor coil of the transformer T1 form a parallel resonant network, the secondary side of the transformer T1 is connected to a voltage doubling and boosting circuit, and the voltage doubling and boosting circuit outputs a voltage through a resistor R1. The utility model is a driving circuit capable of adjusting the output high voltage value, which solves the problem that the self-excited oscillation voltage doubling and boosting circuit cannot adjust the output voltage.

Description

Technical Field

[0001] The utility model relates to a full-bridge voltage doubling and boosting circuit, in particular to an ion blower full-bridge voltage doubling and boosting circuit. Background Art

[0002] Self-excited oscillation voltage doubler boost circuit (attached Figure 1 ), since the oscillation frequency is related to the transformer parameters, under the condition of the same input voltage, the output voltage is also fixed, which is also the reason why the self-excited oscillation voltage doubler boost circuit cannot adjust the output voltage. Utility Model Content

[0003] In order to solve the defects of the above-mentioned prior art, the utility model provides an ion blower full-bridge voltage doubler boost circuit, which is a drive circuit with adjustable output high voltage value, and solves the problem that the self-excited oscillation voltage doubler boost circuit cannot adjust the output voltage.

[0004] To achieve the above technical objectives, the utility model adopts the following technical solutions: an ion blower full-bridge voltage doubling boost circuit, including a full-bridge power device IC2 and a transformer T1, wherein pins 1 and 2 of the full-bridge power device IC2 are respectively connected to XH1 signal and XH2 signal as signal control ports, pin 8 of the full-bridge power device IC2 is connected to diode D1, diode D2, and inductor L1, pin 6 of the full-bridge power device IC2 is connected to diode D3, diode D4, and capacitor C1, inductor L1 and capacitor C1 form a series resonant network, capacitor C1 and the primary side inductor coil of transformer T1 form a parallel resonant network, the secondary side of transformer T1 is connected to a voltage doubling boost circuit, and the voltage doubling boost circuit outputs voltage through resistor R1.

[0005] Furthermore, pins 7 and 9 of the full-bridge power device IC2 are connected to the negative pole of the power supply, and pin 5 is connected to the positive 12V power supply; the cathode of the diode D1 is connected to the positive 12V power supply, and the anode of the diode D2 is connected to the negative pole of the power supply; the anode of the diode D3 is connected to the negative pole of the power supply, and the cathode of the diode D4 is connected to the positive 12V power supply.

[0006] Furthermore, the voltage doubling and boosting circuit includes a capacitor C2, a capacitor C3, a diode D5, and a diode D6. One end of the capacitor C2 is connected to pin 6 of the secondary side inductor of the transformer T1, and the other end is connected to the cathode of the diode D5 and the anode of the diode D6. The anode of the diode D5 is grounded, the cathode of the diode D6 is connected to the capacitor C3, the other end of the capacitor C3 is grounded, pin 4 of the secondary side inductor of the transformer T1 is grounded, and one end of the resistor R1 is connected to the cathode of the diode D6, and the other end is connected to the electrode discharge needle.

[0007] Furthermore, the model of the full-bridge power device IC2 is KP81101, the model of the diode D1, the diode D2, the diode D3, and the diode D4 is SS14, the inductor L1 is 33uH, the capacitor C1, the capacitor C2, and the capacitor C3 are 220PF, the diode D5 and the diode D6 are 15KV10mA, and the resistor R1 is a 5M ohm resistor.

[0008] In summary, the utility model has achieved the following technical effects:

[0009] The utility model has a simple circuit and lower cost than the traditional solution;

[0010] The utility model can output high voltage and can be adjusted in a wide range;

[0011] The utility model has higher voltage conversion efficiency and more stable performance;

[0012] XH1 and XH2 of IC2 of the utility model are signal control terminals of the full-bridge power device. By changing the pulse width and timing of the XH1 and XH2 control signals, the full-bridge power device can be controlled to be turned on or off, thereby achieving the energy transfer rate and adjusting the output voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a traditional self-excited oscillation voltage doubler boost circuit;

[0014] Figure 2 The utility model provides an ion blower full-bridge voltage doubling and boosting circuit. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] Example:

[0022] like Figure 2As shown, an ion blower full-bridge voltage doubling boost circuit includes a full-bridge power device IC2 and a transformer T1. Pins 1 and 2 of the full-bridge power device IC2 are respectively connected to XH1 signal and XH2 signal as signal control ports. Pin 8 of the full-bridge power device IC2 is connected to a diode D1, a diode D2, and an inductor L1. Pin 6 of the full-bridge power device IC2 is connected to a diode D3, a diode D4, and a capacitor C1. The inductor L1 and the capacitor C1 form a series resonant network. The capacitor C1 and the primary side inductor coil of the transformer T1 form a parallel resonant network. The secondary side of the transformer T1 is connected to the voltage doubling boost circuit, and the voltage doubling boost circuit outputs a voltage through a resistor R1.

[0023] Pins 7 and 9 of the full-bridge power device IC2 are connected to the negative pole of the power supply, and pin 5 is connected to the positive 12V power supply; the cathode of the diode D1 is connected to the positive 12V power supply, and the anode of the diode D2 is connected to the negative pole of the power supply; the anode of the diode D3 is connected to the negative pole of the power supply, and the cathode of the diode D4 is connected to the positive 12V power supply; pin 1 of the inductor L1 is connected to pin 8 of IC2, pin 2 of the inductor L1 is connected to pin 2 of the capacitor C1 and pin 1 of the primary side of T1, and pin 1 of the capacitor C1 is connected to pin 6 of IC2 and pin 3 of the primary side of T1.

[0024] The voltage doubling and boosting circuit includes capacitor C2, capacitor C3, diode D5, and diode D6. One end of capacitor C2 is connected to pin 6 of the secondary side inductor of transformer T1, and the other end is connected to the cathode of diode D5 and the anode of diode D6. The anode of diode D5 is grounded, the cathode of diode D6 is connected to capacitor C3, the other end of capacitor C3 is grounded, pin 4 of the secondary side inductor of transformer T1 is grounded, one end of resistor R1 is connected to the cathode of diode D6, and the other end is connected to the electrode discharge needle.

[0025] The model of the full-bridge power device IC2 is KP81101, the model of the diode D1, the diode D2, the diode D3, and the diode D4 is SS14, D1, D2, D3, and D4 are freewheeling diodes, the inductor L1 is 33uH, the capacitors C1, C2, and C3 are 220PF, the diodes D5 and D6 are 15KV10mA, and the resistor R1 uses a current-limiting resistor of 5M ohm.

[0026] The XH1 and XH2 ports of IC2 are the signal control terminals of the full-bridge power device. By changing the pulse width ratio (1% - 50%) of the XH1 and XH2 control signals, the opening ratio (1% - 50%) of the full-bridge power device can be controlled, and the output voltage can be adjusted to 1KV - 5KV. For example, by controlling the pulse width ratio of the XH1 and XH2 control signals to 1% - 50%, the opening ratio of the full-bridge power device can be controlled to 1% - 50%, thereby adjusting the output voltage to 1KV - 5KV.

[0027] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. An ion blower full-bridge voltage doubling and boosting circuit, characterized in that: It includes a full-bridge power device IC2 and a transformer T1. Pin 1 and pin 2 of the full-bridge power device IC2 are respectively connected to the XH1 signal and the XH2 signal as signal control ports. Pin 8 of the full-bridge power device IC2 is connected to a diode D1, a diode D2, and an inductor L1. Pin 6 of the full-bridge power device IC2 is connected to a diode D3, a diode D4, and a capacitor C1. The inductor L1 and the capacitor C1 form a series resonant network. The capacitor C1 and the primary side inductor coil of the transformer T1 form a parallel resonant network. The secondary side of the transformer T1 is connected to a voltage doubling and boosting circuit. The voltage doubling and boosting circuit outputs a voltage through a resistor R1.

2. The ion blower full-bridge voltage doubling and boosting circuit according to claim 1, characterized in that: Pins 7 and 9 of the full-bridge power device IC2 are connected to the negative pole of the power supply, and pin 5 is connected to the positive 12V power supply; the cathode of the diode D1 is connected to the positive 12V power supply, and the anode of the diode D2 is connected to the negative pole of the power supply; the anode of the diode D3 is connected to the negative pole of the power supply, and the cathode of the diode D4 is connected to the positive 12V power supply.

3. The ion blower full-bridge voltage doubling and boosting circuit according to claim 2, characterized in that: The voltage doubling and boosting circuit includes capacitor C2, capacitor C3, diode D5, and diode D6. One end of capacitor C2 is connected to pin 6 of the secondary side inductor of transformer T1, and the other end is connected to the cathode of diode D5 and the anode of diode D6. The anode of diode D5 is grounded, the cathode of diode D6 is connected to capacitor C3, the other end of capacitor C3 is grounded, pin 4 of the secondary side inductor of transformer T1 is grounded, one end of resistor R1 is connected to the cathode of diode D6, and the other end is connected to the electrode discharge needle.

4. The ion blower full-bridge voltage doubling and boosting circuit according to claim 3, characterized in that: The model of the full-bridge power device IC2 is KP81101, the models of diodes D1, D2, D3 and D4 are SS14, the inductor L1 is 33uH, the capacitors C1, C2 and C3 are 220PF, the diodes D5 and D6 are 15KV10mA, and the resistor R1 is a 5M ohm resistor.

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