Bipolar magnetic induction integrated circuit and switch

Abstract

The invention discloses a bipolar magnetic induction integrated circuit and a switch, the bipolar magnetic induction integrated circuit corresponds to a key switch, and each key switch comprises a switch body and a magnetic element; the switch body comprises a component capable of moving up and down, the bipolar magnetic induction integrated circuit is arranged on the surface of the PCB, and the magnetic induction direction of the bipolar magnetic induction integrated circuit is a vertical direction; the magnetic element is positioned above the bipolar magnetic induction integrated circuit and is arranged on the part capable of moving up and down, and the NS pole direction of the magnetic element is a vertical direction or a horizontal direction; the magnetic element moves up and down perpendicular to the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit. The bipolar magnetic induction integrated circuit is higher in anti-jamming capability, more suitable for dynamic control and high in function integration level, the bipolar Hall chip integrates a latch function (such as a latch type Hall), the state can be kept until the magnetic field is reverse, and the bipolar magnetic induction integrated circuit is suitable for accurate position memory.

Description

Technical Field

[0001] The present invention relates to the field of magnetic induction integrated circuits, and particularly to a bipolar magnetic induction integrated circuit and a switch. Background Art

[0002] Existing magnetic induction integrated circuits are generally unipolar magnetic induction integrated circuits. The switches using unipolar magnetic induction integrated circuits have the following disadvantages: 1. Unipolar magnetic induction integrated circuits generally use unipolar Hall elements, which only respond to a single magnetic pole (usually the S pole or N pole), and have no response to the other pole, resulting in low flexibility; 2. Unipolar Hall elements may be mis-triggered due to the interference of a single magnetic pole, and have weak anti-interference ability. Summary of the Invention

[0003] An object of the present invention is to overcome the disadvantages and deficiencies of the prior art and provide a bipolar magnetic induction integrated circuit.

[0004] Another object of the present invention is to provide a switch.

[0005] The object of the present invention is achieved by the following technical solutions:

[0006] A bipolar magnetic induction integrated circuit, each bipolar magnetic induction integrated circuit corresponds to a key switch, and each key switch includes a switch body and a magnetic element; the switch body includes a component that can move up and down, the bipolar magnetic induction integrated circuit is arranged on the surface of the PCB board, and the magnetic induction direction of the bipolar magnetic induction integrated circuit is the vertical direction; the magnetic element is located above the side of the bipolar magnetic induction integrated circuit and is arranged on the component that can move up and down, and the NS pole direction of the magnetic element is the vertical direction or the horizontal direction;

[0007] The magnetic element moves up and down perpendicular to the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit.

[0008] The magnetic parameters BOP and BRP code values of the bipolar magnetic induction integrated circuit are programmable. By setting the BOP and BRP code values, the on-travel and off-travel of the key switch can be set; the magnetic induction polarity of the bipolar magnetic induction integrated circuit is programmable.

[0009] The bipolar magnetic induction integrated circuit contains a programmable address code and integrates a bipolar magnetic induction circuit and a GRB color-changing driving circuit;

[0010] The bipolar magnetic induction integrated circuit includes a power supply pin, a ground pin, and a data pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit, and the ground pin is used for signal grounding and power supply grounding; the power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the data pins are connected in parallel to share the data line network DIO and are connected to the MCU; the data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the data line network DIO; the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code of the corresponding integrated circuit chip, and the cycle sequence position of the data information code sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

[0011] The bipolar magnetic induction integrated circuit contains a programmable address code and integrates a bipolar magnetic induction circuit and a GRB color-changing driving circuit;

[0012] The bipolar magnetic induction integrated circuit includes a power supply pin and a ground pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit and transmit information, and the ground pin is used for signal grounding and power supply grounding; the power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC and are connected to the MCU, and the ground pins are connected in parallel to share the ground network GND; the data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the power supply network VCC; the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code of the corresponding bipolar magnetic induction integrated circuit, and the cycle sequence position of the data information code sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

[0013] The bipolar magnetic induction integrated circuit contains a programmable address code, and the bipolar magnetic induction integrated circuit only integrates a bipolar magnetic induction circuit;

[0014] The bipolar magnetic induction integrated circuit includes a power supply pin, a ground pin, and a data pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit, and the ground pin is used for signal grounding and power supply grounding; the power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the data pins are connected in parallel to share the data line network DIO and are connected to the MCU; the data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the data line network DIO; the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code of the corresponding bipolar magnetic induction integrated circuit, and the cycle sequence position of the data information code sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

[0015] The bipolar magnetic induction integrated circuit contains a programmable address code, and the bipolar magnetic induction integrated circuit only integrates a bipolar magnetic induction circuit;

[0016] The bipolar magnetic induction integrated circuit includes a power supply pin and a ground pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit and transmit information, and the ground pin is used for signal grounding and power supply grounding; the power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC and are connected to the MCU, and the ground pins are connected in parallel to share the ground network GND; the data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the power supply network VCC; the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code corresponding to the bipolar magnetic induction integrated circuit, and the data information code cycle sequence position sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

[0017] The address code of the bipolar magnetic induction integrated circuit has several BIT bits. When n bipolar magnetic induction integrated circuits with address codes are used in parallel, the initial address code of the bipolar magnetic induction integrated circuit is reprogrammed through a custom address code instruction, and the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code corresponding to the bipolar magnetic induction integrated circuit. Operating on the address code of the bipolar magnetic induction integrated circuit is operating on the bipolar magnetic induction integrated circuit corresponding to the address code. Each bipolar magnetic induction integrated circuit corresponds to a button, so operating on the address code of the bipolar magnetic induction integrated circuit is operating on the button corresponding to the bipolar magnetic induction integrated circuit.

[0018] The address code of the bipolar magnetic induction integrated circuit has n BIT bits. The bipolar magnetic induction integrated circuit also has its own unique identification code UID. After the custom address code instruction reads the UID code, this UID code and a natural sequence code to be set are written into the bipolar magnetic induction integrated circuit. After the bipolar magnetic induction integrated circuit compares this UID code with its own UID code and it is correct, the sequence position of the corresponding bipolar magnetic induction integrated circuit is stored in the address code. Operating on the address code of the bipolar magnetic induction integrated circuit is operating on the bipolar magnetic induction integrated circuit corresponding to the address code. Each bipolar magnetic induction integrated circuit corresponds to a button, so operating on the address code of the bipolar magnetic induction integrated circuit is operating on the button corresponding to the bipolar magnetic induction integrated circuit.

[0019] The address code of the bipolar magnetic induction integrated circuit uses laser fusing technology to fuse the initial address codes of n bipolar magnetic induction integrated circuits, so that the address codes become the sequence positions of the bipolar magnetic induction integrated circuits on the PCB. Operating on the address code of the bipolar magnetic induction integrated circuit is operating on the bipolar magnetic induction integrated circuit corresponding to the address code. Each bipolar magnetic induction integrated circuit corresponds to a button, so operating on the address code of the bipolar magnetic induction integrated circuit is operating on the button corresponding to the bipolar magnetic induction integrated circuit.

[0020] n bipolar magnetic induction integrated circuits are cascaded with each other and then connected to the MCU.

[0021] The bipolar magnetic induction integrated circuit is a bipolar latch-type bipolar magnetic induction integrated circuit or a bipolar non-latch-type bipolar magnetic induction integrated circuit.

[0022] The bipolar magnetic induction integrated circuit is a bipolar Hall magnetic induction integrated circuit, or a bipolar TMR, or a bipolar AMR, or a bipolar GMR.

[0023] Another object of the present invention is achieved by the following technical solution:

[0024] A switch uses the above bipolar magnetic induction integrated circuit; the switch includes a micro switch and a magnetic switch; the magnetic switch is a scissor-type magnetic switch or a push-type magnetic switch.

[0025] The switch can be applied to a mouse, a keyboard, a liquid level sensor, an electronic go, and a toy.

[0026] A switch uses the above bipolar magnetic induction integrated circuit to directly output high and low levels when the induction magnetic pole changes.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0028] 1. The bipolar magnetic induction integrated circuit of the present invention works by detecting the change of the magnetic field direction, has stronger anti-interference ability against stray magnetic fields (triggered only by specific polarity changes), and has stronger anti-interference ability.

[0029] 2. The bipolar magnetic induction integrated circuit of the present invention can detect magnetic fields of both north and south poles (both N and S poles trigger), is suitable for scenarios that require distinguishing magnetic field polarities (such as motor commutation and position detection), and is more flexible in detecting the magnetic field direction.

[0030] 3. The bipolar magnetic induction integrated circuit of the present invention is more suitable for dynamic control and frequent high and low level switching.

[0031] 4. The bipolar magnetic induction integrated circuit of the present invention has a high function integration degree. The bipolar Hall chip integrates a latching function (such as a latching Hall), can maintain the state until the magnetic field reverses, and is suitable for accurate position memory. Description of the Drawings

[0032] Figure 1 It is a schematic diagram when the NS poles of the magnetic element are in the vertical direction and the magnetic element is above the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit.

[0033] Figure 2 It is a schematic diagram when the NS poles of the magnetic element are in the vertical direction and the magnetic element passes through the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit.

[0034] Figure 3 Schematic diagram when the NS pole direction of the magnetic element is horizontal and the magnetic element is above the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit.

[0035] Figure 4 Schematic diagram when the NS pole direction of the magnetic element is horizontal and the magnetic element passes through the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit.

[0036] Figure 5 Schematic diagram of electrically burning natural sequence codes into address codes for three integrated circuit chips with address codes.

[0037] Among them, the meanings of the reference numerals are as follows:

[0038] 1 - First magnetic element. Specific embodiments

[0039] The present invention will be further described in detail below in conjunction with embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0040] Embodiment 1

[0041] A bipolar magnetic induction integrated circuit, each bipolar magnetic induction integrated circuit corresponds to a key switch, and each key switch includes a switch body and a magnetic element; the switch body includes a vertically movable component, the bipolar magnetic induction integrated circuit is arranged on the surface of the PCB board, and the magnetic induction direction of the bipolar magnetic induction integrated circuit is vertical; the magnetic element is located above the side of the bipolar magnetic induction integrated circuit and is arranged on the vertically movable component;

[0042] and the NS pole direction of the magnetic element is vertical (such as Figure 1 , 2 ); the magnetic element moves up and down perpendicular to the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit.

[0043] The magnetic parameters BOP and BRP values of the bipolar magnetic induction integrated circuit are programmable. By setting the BOP and BRP values, the on - travel and off - travel of the key switch can be set; the magnetic induction polarity of the bipolar magnetic induction integrated circuit is programmable.

[0044] The meaning of BOP is: Operating Point, that is, the working point, which refers to the minimum magnetic field intensity at which the Hall switch starts to conduct under the action of magnetism.

[0045] The meaning of BRP is: Release Point, that is, the release point, which refers to the maximum magnetic field intensity at which the Hall switch closes under the action of magnetism.

[0046] Figure 1 ,2 Together, it can illustrate the magnetic induction principle that when the NS pole direction of the magnetic component is in the vertical direction, the magnetic induction horizontal plane of the magnetic vertical bipolar magnetic induction integrated circuit moves up and down.

[0047] A bipolar magnetic induction integrated circuit means that when a certain magnetic pole approaches, it conducts, and it still conducts when it leaves. Only when another magnetic pole is applied will it turn off. Figure 1 、 2 In [reference], when the magnetic component moves up and down in the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit, the change from the induction polarity of the bipolar magnetic induction integrated circuit being inconsistent with the magnetic component polarity to being consistent with the magnetic component polarity all satisfies the characteristics of conduction and turn-off of the bipolar magnetic induction integrated circuit.

[0048] Its working process is specifically as follows:

[0049] First, set that when the induction polarity of the bipolar magnetic induction integrated circuit is consistent with the magnetic component induction polarity, it conducts and outputs a low level, and when the induction polarity of the bipolar magnetic induction integrated circuit is inconsistent with the magnetic component induction polarity, it turns off and outputs a high level.

[0050] Then, as shown in Figure 1 , when the magnetic component is above the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit, at this time, the N pole of the magnetic component approaches the S pole of the bipolar magnetic induction integrated circuit, and the bipolar magnetic induction integrated circuit turns off and outputs a high level;

[0051] Next, the magnetic component continues to move downward and passes through the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit (as shown in Figure 2 ); when the N pole of the magnetic component just passes through the magnetic induction horizontal plane of the magnetic induction integrated circuit, the N pole of the magnetic component approaches the N pole of the magnetic induction integrated circuit, and the S pole of the magnetic component approaches the S pole of the magnetic induction integrated circuit, and the bipolar magnetic induction integrated circuit conducts and outputs a low level; (when the magnetic component continues to move downward to the lowest position, the top of the magnetic component is always higher than the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit).

[0052] Then, From Figure 2 to Figure 1 During the reset process of [reference], when the bottom of the magnetic component is higher than the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit and there is a relative inversion of the polarity, the bipolar magnetic induction integrated circuit turns off and outputs a high level.

[0053] We can also, according to the actual situation, set that when the induction polarity of the bipolar magnetic induction integrated circuit is consistent with the magnetic component induction polarity, it conducts and outputs a high level, and when the induction polarity of the bipolar magnetic induction integrated circuit is inconsistent with the magnetic component induction polarity, it turns off and outputs a low level.

[0054] A number of (greater than or equal to 2) bipolar magnetic induction integrated circuits are connected in parallel. The bipolar magnetic induction integrated circuit contains a programmable address code and integrates a bipolar magnetic induction circuit and a GRB color-changing driving circuit;

[0055] The bipolar magnetic induction integrated circuit includes a power supply pin, a ground pin, and a data pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit, and the ground pin is used for signal grounding and power supply grounding; The power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the data pins are connected in parallel to share the data line network DIO and are connected to the MCU; The data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the data line network DIO; The sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code of the corresponding integrated circuit chip, and the cycle sequence position of the data information code sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

[0056] That is to say: The T1 time cycle sequence of the data information code cycle sequence position 1 sent by the MCU after the address code corresponds to the bipolar magnetic induction integrated circuit with the sequence position 1 on the PCB, the T2 time cycle sequence of the data information code cycle sequence position 2 sent by the MCU after the address code corresponds to the bipolar magnetic induction integrated circuit with the sequence position 2 on the PCB, and the T3 time cycle sequence of the data information code cycle sequence position 3 sent by the MCU after the address code corresponds to the bipolar magnetic induction integrated circuit with the sequence position 3 on the PCB.

[0057] For example, as Figure 5, there are 3 bipolar magnetic induction integrated circuits with address codes connected in parallel to form an array, forming a VCC network, a ground GND network, and a data line DIO network; all the same network names are electrically connected together. The 3 bipolar magnetic induction integrated circuits with address codes are ranked as No. 1, No. 2, and No. 3 bipolar magnetic induction integrated circuits in order from left to right in the coordinate system. The first magnetic element 1 will move from beginning to end above each bipolar magnetic induction integrated circuit with an address code according to the custom sequence position. When the first magnetic element 1 moves above the No. 1 bipolar magnetic induction integrated circuit, the No. 1 bipolar magnetic induction integrated circuit senses the voltage change through magnetic induction. At the same time, the No. 1 bipolar magnetic induction integrated circuit receives an address code instruction and address code 1, and then saves the number 1 as the address code. Then, when the first magnetic element 1 moves above the No. 2 bipolar magnetic induction integrated circuit, the No. 2 bipolar magnetic induction integrated circuit senses the voltage change through magnetic induction. At the same time, the bipolar magnetic induction integrated circuit receives an address code instruction and address code 2, and then saves the number 2 as the address code. Once again, when the first magnetic element 1 moves above the No. 3 bipolar magnetic induction integrated circuit, the No. 3 bipolar magnetic induction integrated circuit senses the voltage change through magnetic induction. At the same time, the bipolar magnetic induction integrated circuit receives an assigned address code instruction and address code 3, and then saves the number 3 as the address code. In this way, we have completed the regular natural sequence address codes for the No. 1, No. 2, and No. 3 bipolar magnetic induction integrated circuits. The natural sequence address codes greatly facilitate information communication. The same applies to n bipolar magnetic induction integrated circuits.

[0058] The address code of the bipolar magnetic induction integrated circuit has several BIT bits. When n bipolar magnetic induction integrated circuits with address codes are used in parallel, the initial address code of the bipolar magnetic induction integrated circuit is reprogrammed through a custom address code instruction, and the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code of the corresponding bipolar magnetic induction integrated circuit. Operating on the address code of the bipolar magnetic induction integrated circuit is operating on the corresponding bipolar magnetic induction integrated circuit. Each bipolar magnetic induction integrated circuit corresponds to a key, so operating on the address code of the bipolar magnetic induction integrated circuit is operating on the key corresponding to the bipolar magnetic induction integrated circuit.

[0059] Embodiment 2

[0060] This embodiment is the same as Embodiment 1 in all aspects except for the following content:

[0061] The NS pole direction of the magnetic element is in the horizontal direction (such as Figure 3 , 4);The magnetic induction horizontal plane of the magnetic element vertical bipolar magnetic induction integrated circuit moves up and down. When the magnetic element is stationary, the magnetic element is located above one side of the bipolar magnetic induction integrated circuit; as the magnetic element moves up and down, the magnetic element passes through the opening on the PCB and makes a reciprocating motion in the vertical direction along the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit, closing or opening the bipolar magnetic induction integrated circuit. During the up and down movement of the magnetic element, it always maintains a skew parallel or coplanar parallel relationship with the horizontal plane of the bipolar magnetic induction integrated circuit. When the magnetic element is coplanar parallel with the horizontal plane of the bipolar magnetic induction integrated circuit, the N pole or S pole of the magnetic element is horizontally facing the bipolar magnetic induction integrated circuit.

[0062] Figure 3 、 4 Together, it can illustrate the magnetic induction principle that when the NS pole direction of the magnetic element is in the horizontal direction, the magnetic element moves up and down perpendicular to the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit.

[0063] Similarly, Figure 3 、 4 In, the magnetic element moves up and down in the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit. The change from the induction polarity of the bipolar magnetic induction integrated circuit being inconsistent with the magnetic element polarity to the induction polarity of the bipolar magnetic induction integrated circuit being consistent with the magnetic element polarity all satisfies the characteristics of the bipolar magnetic induction integrated circuit being turned on and off.

[0064] Its working process is as follows:

[0065] First, it is set that when the induction polarity of the bipolar magnetic induction integrated circuit is consistent with the magnetic element induction polarity, it conducts and outputs a low level, and when the induction polarity of the bipolar magnetic induction integrated circuit is inconsistent with the magnetic element induction polarity, it turns off and outputs a high level; the left N pole and the right S pole of the magnetic element each account for half of the volume;

[0066] Then, as Figure 3 , the magnetic element is above the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit. At this time, the N pole of the magnetic element is close to the S pole of the bipolar magnetic induction integrated circuit, and the bipolar magnetic induction integrated circuit turns off and outputs a high level;

[0067] Next, the magnetic element continues to move downward and passes through the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit (as Figure 2) When the magnetic element at half of its overall height passes through the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit, the bipolar magnetic induction integrated circuit conducts and outputs a low level. The reason is as follows: Although the N pole of the magnetic element is always closer to the bipolar magnetic induction integrated circuit, during this movement process of the magnetic element, it cannot provide the S pole closer to the bipolar magnetic induction integrated circuit for the bipolar magnetic induction integrated circuit. However, when half of the height of the magnetic element passes through the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit, the magnetic flux of the N pole above the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit is less than the magnetic flux of the N pole below the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit. After mutual cancellation, the magnetic element can be regarded as having an S pole above and an N pole below (with the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit as the boundary). At this time, it is equivalent to the N pole of the magnetic element approaching the N pole of the magnetic induction integrated circuit and the S pole of the magnetic element approaching the S pole of the magnetic induction integrated circuit. Therefore, the bipolar magnetic induction integrated circuit conducts and outputs a low level;

[0068] Then, From Figure 4 to Figure 3 During the reset process, when half of the height of the magnetic element is higher than the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit, there is also a relative inversion of the polarity, and the bipolar magnetic induction integrated circuit turns off and outputs a high level.

[0069] We can also, according to the actual situation, set that when the induction polarity of the bipolar magnetic induction integrated circuit is the same as the induction polarity of the magnetic element, it conducts and outputs a high level, and when the induction polarity of the bipolar magnetic induction integrated circuit is different from the induction polarity of the magnetic element, it turns off and outputs a low level.

[0070] Embodiment 3

[0071] This embodiment is the same as Embodiment 1 in all aspects except for the following content:

[0072] This embodiment is the same as Embodiment 1 in all aspects except for the following content:

[0073] The bipolar magnetic induction integrated circuit contains a programmable address code and integrates a bipolar magnetic induction circuit and a GRB color-changing driving circuit;

[0074] The bipolar magnetic induction integrated circuit includes a power supply pin and a ground pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit and transmit information, and the ground pin is used for signal grounding and power supply grounding; the power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC and are connected to the MCU, and the ground pins are connected in parallel to share the ground network GND; the data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the power supply network VCC; the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code corresponding to the bipolar magnetic induction integrated circuit, and the cycle sequence position of the data information code sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

[0075] The address code of the bipolar magnetic induction integrated circuit has n BIT bits, and the bipolar magnetic induction integrated circuit also has its own identification code UID. After the custom address code instruction reads the UID code, this UID code and a natural sequence code to be set are written into the bipolar magnetic induction integrated circuit. After the bipolar magnetic induction integrated circuit compares this UID code with its own UID code correctly, it stores the sequence position of the corresponding bipolar magnetic induction integrated circuit into the address code. Operating on the address code of the bipolar magnetic induction integrated circuit is operating on the bipolar magnetic induction integrated circuit corresponding to the address code. Each bipolar magnetic induction integrated circuit corresponds to a button, so operating on the address code of the bipolar magnetic induction integrated circuit is operating on the button corresponding to the bipolar magnetic induction integrated circuit.

[0076] Embodiment 4

[0077] Except for the following content which is different from Embodiment 1, the rest of the content is the same as that of Embodiment 1:

[0078] The bipolar magnetic induction integrated circuit contains a programmable address code, and the bipolar magnetic induction integrated circuit only integrates a bipolar magnetic induction circuit;

[0079] The bipolar magnetic induction integrated circuit includes a power supply pin, a ground pin, and a data pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit, and the ground pin is used for signal grounding and power supply grounding; the power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the data pins are connected in parallel to share the data line network DIO and are connected to the MCU; the data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the data line network DIO; the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code corresponding to the bipolar magnetic induction integrated circuit, and the cycle sequence position of the data information code sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

[0080] The address code of the bipolar magnetic induction integrated circuit uses laser fusing technology to fuse the initial address codes of n bipolar magnetic induction integrated circuits, so that the address codes become the sequence positions of the bipolar magnetic induction integrated circuits on the PCB. Operating on the address code of the bipolar magnetic induction integrated circuit is operating on the bipolar magnetic induction integrated circuit corresponding to the address code. Each bipolar magnetic induction integrated circuit corresponds to a button, so operating on the address code of the bipolar magnetic induction integrated circuit is operating on the button corresponding to the bipolar magnetic induction integrated circuit.

[0081] Embodiment 5

[0082] This embodiment is the same as Embodiment 1 in all aspects except for the following content:

[0083] The bipolar magnetic induction integrated circuit contains a programmable address code, and the bipolar magnetic induction integrated circuit only integrates a bipolar magnetic induction circuit;

[0084] The bipolar magnetic induction integrated circuit includes a power supply pin and a ground pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit and transmit information, and the ground pin is used for signal grounding and power supply grounding; the power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power network VCC and are connected to the MCU, and the ground pins are connected in parallel to share the ground network GND; the data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the power network VCC; the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code corresponding to the bipolar magnetic induction integrated circuit, and the cycle sequence position of the data information code sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

[0085] Embodiment 6

[0086] This embodiment is the same as Embodiment 1 in all aspects except for the following content:

[0087] n bipolar magnetic induction integrated circuits are cascaded with each other and then connected to the MCU.

[0088] The present invention also provides a switch, which uses the bipolar magnetic induction integrated circuit described in any one of Embodiments 1 to 6; the switch includes a micro switch and a magnetic switch; the magnetic switch is a scissor-type magnetic switch or a push-type magnetic switch. The switch can be applied to a mouse, a keyboard, a liquid level sensor, an electronic go, and a toy.

[0089] The present invention also provides another switch for independent use, which only uses one bipolar magnetic induction integrated circuit described in any one of Embodiments 1 to 6 to directly output high and low levels.

[0090] The bipolar magnetic induction integrated circuit described in any one of Embodiments 1 to 6 may also not be programmed and directly output high and low levels corresponding to the change of the induced magnetic pole.

[0091] The bipolar magnetic induction integrated circuit described in any one of Embodiments 1 to 6 is a bipolar latch-type bipolar magnetic induction integrated circuit or a bipolar non-latch-type bipolar magnetic induction integrated circuit.

[0092] The bipolar magnetic induction integrated circuit described in any one of Embodiments 1 to 6 is a bipolar Hall magnetic induction integrated circuit, or a bipolar TMR, or a bipolar AMR, or a bipolar GMR.

[0093] The above embodiments are preferred embodiments of the present invention. However, the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A bipolar magnetic induction integrated circuit, characterized in that: Each bipolar magnetic induction integrated circuit corresponds to a key switch. Each key switch includes a switch body and a magnetic element. The switch body includes a vertically movable component. The bipolar magnetic induction integrated circuit is disposed on the surface of the PCB board, and the magnetic induction direction of the bipolar magnetic induction integrated circuit is the vertical direction. The magnetic element is located above the side of the bipolar magnetic induction integrated circuit and is disposed on the vertically movable component, and the NS pole direction of the magnetic element is the vertical direction or the horizontal direction. The magnetic element moves up and down perpendicular to the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit.

2. The bipolar magnetic induction integrated circuit according to claim 1, characterized in that: The magnetic parameter BOP and BRP code values of the bipolar magnetic induction integrated circuit are programmable. By setting the BOP and BRP code values, the on-travel and off-travel of the key switch can be set. The magnetic induction polarity of the bipolar magnetic induction integrated circuit is programmable.

3. The bipolar magnetic induction integrated circuit according to claim 2, wherein: It contains a programmable address code and integrates a bipolar magnetic induction circuit and a GRB color-changing driving circuit. The bipolar magnetic induction integrated circuit includes a power supply pin, a ground pin, and a data pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit. The ground pin is used for signal grounding and power grounding. The power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC. The ground pins are connected in parallel to share the ground network GND. The data pins are connected in parallel to share the data line network DIO and are connected to the MCU. The data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the data line network DIO. The sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code of the corresponding integrated circuit chip. The data information code cycle sequence position sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

4. The bipolar magnetic induction integrated circuit according to claim 2, wherein: It contains a programmable address code and integrates a bipolar magnetic induction circuit and a GRB color-changing driving circuit. The bipolar magnetic induction integrated circuit includes a power supply pin and a ground pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit and transmit information. The ground pin is used for signal grounding and power grounding. The power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC and are connected to the MCU. The ground pins are connected in parallel to share the ground network GND. The data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the power supply network VCC. The sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code of the corresponding bipolar magnetic induction integrated circuit. The data information code cycle sequence position sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

5. The bipolar magnetic induction integrated circuit according to claim 2, wherein: It contains a programmable address code, and the bipolar magnetic induction integrated circuit only integrates a bipolar magnetic induction circuit. The bipolar magnetic induction integrated circuit includes a power supply pin, a ground pin, and a data pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit, and the ground pin is used for signal grounding and power grounding. The power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the data pins are connected in parallel to share the data line network DIO and are connected to the MCU. The data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the data line network DIO. The sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code corresponding to the bipolar magnetic induction integrated circuit, and the cycle sequence position of the data information code sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

6. The bipolar magnetic induction integrated circuit according to claim 2, characterized in that: It contains a programmable address code, and the bipolar magnetic induction integrated circuit only integrates the bipolar magnetic induction circuit; The bipolar magnetic induction integrated circuit includes a power supply pin and a ground pin. The power supply pin is used to supply power to the bipolar magnetic induction integrated circuit and transmit information, and the ground pin is used for signal grounding and power grounding. The power supply pins of n bipolar magnetic induction integrated circuits are connected in parallel to share the power supply network VCC and are connected to the MCU, and the ground pins are connected in parallel to share the ground network GND. The data information of the bipolar magnetic induction integrated circuit is modulated and transmitted on the power supply network VCC. The sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code corresponding to the bipolar magnetic induction integrated circuit, and the cycle sequence position of the data information code sent by the MCU after the address code corresponds one-to-one with the sequence position of the bipolar magnetic induction integrated circuit on the PCB.

7. The bipolar magnetic induction integrated circuit according to any one of claims 3 to 6, characterized in that, The address code of the bipolar magnetic induction integrated circuit has several BIT bits. When n bipolar magnetic induction integrated circuits with address codes are used in parallel, the initial address code of the bipolar magnetic induction integrated circuit is reprogrammed through a custom address code instruction, and the sequence position of the bipolar magnetic induction integrated circuit on the PCB is written into the address code corresponding to the bipolar magnetic induction integrated circuit. The operation on the address code of the bipolar magnetic induction integrated circuit is the operation on the bipolar magnetic induction integrated circuit corresponding to the address code. Each bipolar magnetic induction integrated circuit corresponds to a button, so the operation on the address code of the bipolar magnetic induction integrated circuit is the operation on the button corresponding to the bipolar magnetic induction integrated circuit.

8. The bipolar magnetic induction integrated circuit according to any one of claims 3 to 6, characterized in that, The address code of the bipolar magnetic induction integrated circuit has n BIT bits. The bipolar magnetic induction integrated circuit also has its own identity code UID. After the custom address code instruction reads the UID code, this UID code and a natural sequence code to be set are written into the bipolar magnetic induction integrated circuit. After the bipolar magnetic induction integrated circuit compares this UID code with its own UID code and finds them correct, it stores the sequence position of the corresponding bipolar magnetic induction integrated circuit into the address code. The operation on the address code of the bipolar magnetic induction integrated circuit is the operation on the bipolar magnetic induction integrated circuit corresponding to the address code. Each bipolar magnetic induction integrated circuit corresponds to a button, so the operation on the address code of the bipolar magnetic induction integrated circuit is the operation on the button corresponding to the bipolar magnetic induction integrated circuit.

9. The bipolar magnetic induction integrated circuit according to claim 3 or 4, characterized in that The address code of the bipolar magnetic induction integrated circuit uses laser fusing technology to fuse the initial address codes of n bipolar magnetic induction integrated circuits, so that the address code becomes the sequence number of the bipolar magnetic induction integrated circuit on the PCB. Operating on the address code of the bipolar magnetic induction integrated circuit is operating on the bipolar magnetic induction integrated circuit corresponding to the address code. Each bipolar magnetic induction integrated circuit corresponds to a button, so operating on the address code of the bipolar magnetic induction integrated circuit is operating on the button corresponding to the bipolar magnetic induction integrated circuit.

10. The bipolar magnetic induction integrated circuit according to claim 2, wherein: n bipolar magnetic induction integrated circuits are cascaded with each other and then connected to the MCU.

11. The bipolar magnetic induction integrated circuit according to claim 1, wherein: The bipolar magnetic induction integrated circuit is a bipolar latch-type magnetic induction integrated circuit or a bipolar non-latch-type magnetic induction integrated circuit.

12. The bipolar magnetic induction integrated circuit according to claim 1, wherein: The bipolar magnetic induction integrated circuit is a bipolar Hall magnetic induction integrated circuit or a bipolar TMR or a bipolar AMR or a bipolar GMR.

13. A switch, characterized in that: Adopt the bipolar magnetic induction integrated circuit described in any one of claims 1 to 6 and 10 to 12; the switch includes a micro switch and a magnetic switch; the magnetic switch is a scissor-type magnetic switch or a push-type magnetic switch.

14. The switch according to claim 13, wherein: It can be applied to mice, keyboards, liquid level sensors, electronic go, and toys.

15. A switch, characterized in that: Adopt the bipolar magnetic induction integrated circuit described in any one of claims 1 or 2, and directly output high and low levels when the induction magnetic pole changes.

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