CN113988302A

CN113988302A - Laser beam alignment driving circuit board and ion trap quantum computer

Info

Publication number: CN113988302A
Application number: CN202111480195.0A
Authority: CN
Inventors: 周佐霖; 周卓俊; 黄毛毛; 陈柳平; 韩琢; 罗乐
Original assignee: Guangdong Qike Quantum Information Technology Research Institute Co ltd; Guokaike Quantum Technology Beijing Co Ltd
Current assignee: Guangdong Qike Quantum Information Technology Research Institute Co ltd; Guokaike Quantum Technology Beijing Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-01-28

Abstract

The invention discloses a laser beam alignment driving circuit board, which comprises a digital-analog conversion module and an output channel module; the input end of the digital-to-analog conversion module is electrically connected with the main control board of the ion trap quantum computer and is used for receiving digital signals sent by the main control board of the ion trap quantum computer and converting the digital signals into analog signals; the output channel modules are multiple, the input end of each output channel module is electrically connected with the output end of the digital-to-analog conversion module, the output ends of the output channel modules are electrically connected with corresponding piezoelectric ceramics of the ion trap quantum computer respectively, and the output channel modules are used for filtering and amplifying analog signals and then sending the analog signals to the corresponding piezoelectric ceramics, so that the movement of the corresponding piezoelectric ceramics is driven and controlled, and the position of a laser beam is controlled. The invention can realize the accurate control of the multi-path laser beam. The invention also discloses an ion trap quantum computer.

Description

Laser beam alignment driving circuit board and ion trap quantum computer

Technical Field

The invention relates to a driving circuit, in particular to a laser beam alignment driving circuit board and an ion trap quantum computer.

Background

The ion trap quantum computer is a device which adopts direct current and high-frequency alternating current to form an electric field area so that ions are stably trapped in the electric field area, and the ions are actually subjected to state operation by controlling specific parameters of laser. However, currently, for an ion trap quantum computer, the ion controlled by the ion trap quantum computer is not only one but several to hundreds. Each ion is an operable qubit, and precise alignment of the laser with each ion is required to achieve high-speed operation of the ion trap quantum computer. The laser alignment of ions in the current ion trap quantum computer is realized by using an acousto-optic modulator, but the acousto-optic modulator has high price and limited number of operable channels, and is difficult to adapt to the state operation of dozens of or even more ions.

In addition, besides the acousto-optic modulator, a special piezoelectric controller such as MD693B is used, but this device has the problems of small quantity of laser beams capable of being controlled simultaneously, high energy consumption, poor stability, large noise and the like.

Disclosure of Invention

In order to overcome the disadvantages of the prior art, an object of the present invention is to provide a laser beam alignment driving circuit board, which can solve the problem that an ion trap quantum computer in the prior art cannot control the control of multiple laser beams.

The second objective of the present invention is to provide an ion trap quantum computer, which can solve the problem that the ion trap quantum computer in the prior art cannot control the control of multiple laser beams.

One of the purposes of the invention is realized by adopting the following technical scheme:

a laser beam alignment driving circuit board is applied to an ion trap quantum computer; the laser beam alignment driving circuit board comprises a digital-to-analog conversion module and an output channel module; the input end of the digital-analog conversion module is electrically connected with the main control board of the ion trap quantum computer and is used for receiving a digital signal sent by the main control board of the ion trap quantum computer and converting the digital signal into an analog signal;

the output channel modules are multiple, the input end of each output channel module is electrically connected with the output end of the digital-analog conversion module, the output ends of the output channel modules are respectively electrically connected with the corresponding piezoelectric ceramics of the ion trap quantum computer, and the output channel modules are used for filtering and amplifying the analog signals and then sending the analog signals to the corresponding piezoelectric ceramics, so that the movement of the corresponding piezoelectric ceramics is driven and controlled, and the position of the laser beam is controlled.

Further, the output channel module comprises a low pass filter and an amplifier; the low-pass filter is used for filtering the analog signal; the amplifier is used for amplifying the filtered analog signal;

the output channel module comprises an operational amplifier IC1, an operational amplifier IC2, an RC filter circuit consisting of a resistor R1, a resistor R2 and a capacitor C1, a capacitor C20, a capacitor C21, a diode array, a resistor R3, a resistor R4, a resistor R5, a capacitor C3 and a filter circuit consisting of a resistor R6, a resistor R10 and a resistor R11; the inverting input end of the operational amplifier IC2 is electrically connected to the output end of the operational amplifier IC2, and the non-inverting input end of the operational amplifier IC2 is electrically connected to the corresponding output end of the digital-to-analog conversion module through an RC filter circuit composed of a resistor R1, a resistor R2, and a capacitor C1, and is configured to perform filtering processing on the analog signal;

the positive phase input end of the operational amplifier IC1 is electrically connected with the output end of the operational amplifier IC2, and the output end is electrically connected with the corresponding piezoelectric ceramics through a filter circuit consisting of a resistor R6, a resistor R10 and a resistor R11 and used for amplifying the filtered analog signal and outputting the amplified analog signal to the corresponding piezoelectric ceramics so as to drive the piezoelectric ceramics to move;

the output end of the operational amplifier IC1 is grounded through a resistor R3, a resistor R4 and a resistor R5, and the inverting input end is connected between the resistor R3 and the resistor R4;

the diode array comprises a diode D2B, a diode D1A, a diode D1B and a diode D2A; the cathode of the diode D2A is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected with the inverting input terminal of the operational amplifier IC1 through the diode D2B; the cathode of the diode D1B is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected to the inverting input terminal of the operational amplifier IC1 through the diode D1A.

Further, a second-order low-pass filtering module is arranged between each output channel module and the corresponding piezoelectric ceramic, and the second-order low-pass filtering module is used for filtering the analog signals output by the corresponding output channel modules and outputting the analog signals to the piezoelectric ceramic; the second-order low-pass filter module comprises a switch module and a second-order low-pass filter; one end of the switch module is electrically connected with the output end of the corresponding output channel module, and the other end of the switch module is electrically connected with the corresponding piezoelectric ceramic; the switch module is also electrically connected with the second-order low-pass filter; the switch module comprises a switch SW1A, a switch SW1B, a resistor R10 and a resistor R11; the second-order low-pass filter comprises an operational amplifier IC1A, a resistor R12, a capacitor C1 and a capacitor C2;

an input pin of the switch SW1A is electrically connected with an output end of the corresponding output channel module, a first output pin is electrically connected with a first output pin of the switch SW1B, a second output pin is electrically connected with a second output pin of the switch SW1B through a resistor R10 and a resistor R11, and an input pin of the switch SW1B is electrically connected with the piezoelectric ceramic;

the inverting input end of the operational amplifier IC1A is connected between the resistor R10 and the resistor R11 through a capacitor C1, the non-inverting input end is grounded, the positive electrode power supply end is connected to a +4.5V power supply, the negative electrode power supply end is connected to a-4.5V power supply, and the output end is connected between the resistor R10 and the resistor R11 through a capacitor C2; one end of the resistor R12 is connected between the capacitor C11 and the inverting input terminal of the operational amplifier IC1A, and the other end is connected between the capacitor C2 and the output terminal of the operational amplifier IC 1A.

Furthermore, each output channel module is also provided with a monitoring module and an LED lamp; one end of the monitoring module is electrically connected with the corresponding output channel module, and the other end of the monitoring module is electrically connected with the LED lamp and is used for monitoring the temperature of the corresponding output channel module and controlling the LED lamp to display the corresponding color so as to display the temperature of the corresponding output channel module;

the monitoring module comprises an operational amplifier IC1D, a filter circuit consisting of a resistor R13 and a resistor R14, a resistor R15 and a resistor R16; the LED lamp is a light emitting diode LD 1D;

the inverting input end of the operational amplifier IC1D is electrically connected with the corresponding output channel module, and the non-inverting input end is connected with a 3.3V power supply through a resistor R13; one end of the resistor R14 is grounded, and the other end is connected between the resistor R13 and the operational amplifier IC 1D; the negative electrode power supply end of the operational amplifier IC1D is grounded, the positive electrode power supply end is connected with a 3.3V power supply, and the positive phase input end is electrically connected with the output end of the operational amplifier IC1D through a resistor R15;

the output terminal of the operational amplifier IC1D is electrically connected to the led LD1D through the resistor R16, and controls the operating state of the led LD 1D.

Furthermore, the digital-analog conversion module is in communication connection with a main control board of the ion trap quantum computer through an SPI interface.

Further, the number of the output channel modules is 8; the digital-analog conversion module comprises an AD5362BCPZ chip IC41 and a power supply filtering module; the chip IC41 is provided with 8 input ends which are respectively communicated with the ion trap quantum computer through an SPI protocol; the chip IC41 is provided with 8 output ends which are respectively electrically connected with the input ends of the 8 output channel modules; the plurality of power supply ends of the chip IC41 are also connected with corresponding power supplies through corresponding power supply filtering modules, and the corresponding power supplies comprise a 3.3V power supply, a 5V power supply, an 11.5V power supply and a-4.5V power supply.

Furthermore, the laser beam alignment driving circuit board further comprises a power supply module, wherein the power supply module is electrically connected with the main control board, the digital-analog conversion module and the output channel module of the ion trap quantum computer, and is used for acquiring a power supply from the main control board of the ion trap quantum computer, converting the power supply into a corresponding internal working power supply, and providing a working power supply for the digital-analog conversion module and the output channel module.

Further, the power supply module comprises a first power supply module, a second power supply module and a third power supply module; the first power supply module comprises a 12V-to-3.3V power supply module, a 12V-to-4.5V power supply module and a 12V-to-4.5V power supply module, and is respectively used for converting a 12V power supply acquired from a main control board of the ion trap quantum computer into a 3.3V power supply, a-4.5V power supply and a +4.5 power supply; the second power supply module is used for converting a 12V power supply into an 11.5V power supply; the third power supply module is used for converting a 12V power supply into a 200V power supply module;

the first power supply module comprises a first LC filter circuit, a first filter circuit, a chip IC7, a second LC filter circuit, a resistor R19 and a resistor R20;

the power supply input end of the chip IC7 is connected to a 12V power supply through a second filter circuit and a first LC filter circuit, and the output end outputs a 3.3V power supply through the second LC filter circuit;

the first filter circuit comprises a capacitor C26 and a capacitor C27 which are connected in parallel; one ends of the capacitor C26 and the capacitor C27 are grounded, and the other ends of the capacitor C26 and the capacitor C27 are connected between the first LC filter circuit and the chip IC 7;

the first LC filter circuit comprises a capacitor C52, a capacitor C53 and an inductor L4; one ends of the capacitor C52 and the capacitor C53 are grounded, and the other ends of the capacitor C52 and the capacitor C53 are electrically connected with the input end of the chip IC7 through the inductor L4;

the second LC filter circuit comprises an inductor L1, a capacitor C28 and a capacitor C29; one ends of the capacitor C28 and the capacitor C29 are grounded, and the other ends of the capacitor C28 and the capacitor C29 are electrically connected with the output end of the chip IC1 through the inductor L1;

one end of the resistor R19 is electrically connected with the output end of the chip IC7 through the inductor L1, and the other end of the resistor R20 is grounded;

the first power supply module further comprises a second filter circuit, a chip IC9, a third LC filter circuit, a fourth LC filter circuit, a voltage stabilizer IC10, a voltage stabilizer IC11, a third filter circuit, a fourth filter circuit, a voltage regulator tube D3, a voltage regulator tube D1, a resistor R26, a resistor R25, a resistor R23 and a resistor R24; the positive input end of the chip IC9 is connected to a 12V power supply through a second filter circuit and a first LC filter circuit, the negative input end of the chip IC9 is grounded, the positive output end of the chip IC9 is electrically connected with the input end of a voltage stabilizer IC10 through a third LC filter circuit, and the negative output end of the chip IC9 is electrically connected with the input end of a voltage stabilizer IC11 through a fourth LC filter circuit; the chip IC9 is used for converting a 12V power supply into a +5V power supply and a-5V power supply respectively;

the second filter circuit comprises a capacitor C35 and a capacitor C36; one ends of the capacitor C35 and the capacitor C36 are grounded, and the other ends of the capacitor C35 and the capacitor C36 are connected between the first LC filter circuit and the chip IC 9;

the second LC filter circuit comprises an inductor L3, a capacitor C42 and a capacitor C43; one ends of the capacitor C42 and the capacitor C43 are grounded, and the other ends of the capacitor C42 and the capacitor C43 are connected between the inductor L3 and the voltage stabilizer IC 10; the inductor L3 is also electrically connected with the positive output end of the chip IC 9;

the third LC filter circuit comprises an inductor L2, a capacitor C37 and a capacitor C38; one ends of the capacitor C37 and the capacitor C43 are grounded, and the other ends of the capacitor C37 and the capacitor C43 are connected between the inductor L2 and the voltage stabilizer IC 11; the inductor L2 is also electrically connected with the negative output end of the chip IC 9;

the output end of the voltage regulator IC10 outputs +4.5V through a third filter circuit; the output end of the voltage stabilizer IC11 outputs-4.5V through a fourth filter circuit;

the third filter circuit comprises a capacitor C45 and a capacitor C46; one ends of the capacitor C45 and the capacitor C46 are grounded, and the other ends of the capacitor C45 and the capacitor C46 are electrically connected with the output end of the voltage stabilizer IC 10; the fourth filter circuit comprises a capacitor C40 and a capacitor C41; one ends of the capacitor C40 and the capacitor C41 are grounded, and the other ends of the capacitor C40 and the capacitor C41 are electrically connected with the output end of the voltage stabilizer IC 11;

one end of the diode D3 is grounded, and the other end is electrically connected with the output end of the voltage regulator IC 10; one end of the diode D1 is grounded, and the other end is electrically connected with the output end of the voltage regulator IC 11;

the second power supply module comprises a fourth LC filter circuit, a voltage regulator IC8, a fifth filter circuit, a diode D2, a resistor R21 and a resistor R22; the input end of the voltage stabilizer IC8 is connected to a 12V power supply through a fourth LC wave circuit, and the output end of the voltage stabilizer IC8 outputs an 11.5V power supply through a fifth filter circuit;

one end of the resistor R21 is electrically connected with the output end of the voltage regulator IC8, and the other end is grounded through a resistor R22; one end of the diode D2 is grounded, and the other end is electrically connected with the output end of the voltage regulator IC 8;

the fourth LC filter circuit comprises a capacitor C30, a capacitor C31 and an inductor L7; one ends of the capacitor C3 and the capacitor C31 are grounded, and the other ends of the capacitor C3 and the capacitor C31 are connected between the inductor L7 and the input end of the voltage stabilizer IC 8; the fifth filter circuit comprises a capacitor C33 and a capacitor C34; one ends of the capacitor C33 and the capacitor C34 are grounded, and the other ends of the capacitor C33 and the capacitor C34 are electrically connected with the output end of the voltage stabilizer IC 8;

the third power supply module comprises a fifth LC filter circuit, a voltage stabilizer IC12, a sixth LC filter circuit, a switch SW0, a capacitor C49, a resistor R27, a resistor R28 and a resistor R29; the input end of the voltage stabilizer IC12 is connected to a 12V power supply through a fifth LC filter circuit, and the control end is electrically connected with the switch SW 0; an input pin of the switch SW0 is grounded through a resistor R27, a second output pin is grounded through a resistor R28, and a first output pin is grounded through a resistor R29; the output power of the output end of the voltage regulator IC12 is switched among a 100V power supply, a 150V power supply and a 200V power supply through the control of a switch SW 0;

the fifth LC filter circuit comprises an inductor L6, a capacitor C47 and a capacitor C48; one end of the capacitor C47 is grounded, and the other end is electrically connected with the voltage regulator IC12 through the inductor L6; one end of the capacitor C48 is grounded, and the other end is connected between the inductor L6 and the voltage regulator IC 12;

the sixth LC filter circuit comprises a capacitor C49, a capacitor C50, an inductor L5 and a capacitor C51; one end of the capacitor C49 is grounded, and the other end is connected to the voltage regulator IC12 and electrically connected; one end of the capacitor C50 and one end of the capacitor C51 are grounded, and the other end is electrically connected to the regulator IC12 through the inductor L5.

Further, the laser beam alignment driving circuit board further comprises a storage module, wherein the storage module is electrically connected with a main control board of the ion trap quantum computer and is used for storing configuration parameters of the laser beam alignment driving circuit board, so that the main control board of the ion trap quantum computer can identify the laser beam alignment driving circuit board according to the configuration parameters.

The second purpose of the invention is realized by adopting the following technical scheme:

an ion trap quantum computer comprising a main control board, piezoelectric ceramics, a laser beam emitter and a laser beam driving circuit board employed as one of the objects of the present invention; the piezoelectric ceramic is used for driving the position of the laser beam emitter to move; the piezoelectric ceramics and the laser beam emitters are multiple and the number of the piezoelectric ceramics and the laser beam emitters is the same as that of the output channel modules of the laser beam driving circuit board;

the main control board is electrically connected with the laser beam driving circuit board and used for sending control signals to the laser beam driving circuit board so that the laser beam driving circuit board generates multiple paths of driving signals according to the control signals and outputs each path of driving signals to the corresponding piezoelectric ceramics, so that the corresponding piezoelectric ceramics are driven to move, and the control of the laser emission position of the laser beam emitter is realized.

Compared with the prior art, the invention has the beneficial effects that:

the laser beam driving circuit board is combined with the control of the piezoelectric ceramics to realize the position change of the laser beam, so that the accurate emission of the laser beam is realized; meanwhile, a plurality of channels are also arranged, so that the position change of a plurality of laser beams can be controlled simultaneously, and the problem of inaccurate laser beam control in the prior art is solved; meanwhile, the invention can be directly nested in the ion trap quantum computer and combined with the main control panel of the ion trap quantum computer to realize the emission control of the laser beam of the ion trap quantum computer, and has the characteristics of simple operation and the like.

Drawings

FIG. 1 is a schematic connection diagram of a laser beam driving circuit board, a main control board of an ion trap quantum computer, an upper computer and piezoelectric ceramics provided by the invention;

FIG. 2 is a circuit diagram of the digital-to-analog conversion module of FIG. 1;

FIG. 3 is a circuit diagram of one of the output channel modules of FIG. 1;

FIG. 4 is a circuit diagram of a second order low pass filter of FIG. 1;

FIG. 5 is a circuit diagram of the monitoring module of FIG. 1;

FIG. 6 is a circuit diagram of a first power module provided in the present invention;

FIG. 7 is a circuit diagram of a second power module provided in the present invention;

fig. 8 is a circuit diagram of a third power module provided in the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

The invention provides a preferred embodiment, a laser beam alignment driving circuit board, which comprises a digital-analog conversion module and an output channel module.

Preferably, the driving circuit board is applied to an ion trap quantum computer. An ion trap quantum computer generally comprises a main control board, a driving circuit board and piezoelectric ceramics. The main control board is a main control center of the ion trap quantum computer, acquires a control instruction sent by the upper computer through communication with the upper computer, and drives the piezoelectric ceramic to move through the driving circuit board so as to control the position of the laser beam and realize accurate emission of the laser beam.

Generally, the main control panel of the ion trap quantum computer is an FPAG control panel.

Preferably, the digital-to-analog conversion module is connected with a main control board of the ion trap quantum computer and is used for realizing conversion between a digital signal and an analog signal. The invention drives the piezoelectric ceramic to move by the driving circuit board to ensure the accurate emission of the laser beam. When the driving circuit board works, the movement of the piezoelectric ceramics is controlled by receiving the driving signal sent by the main control board. Therefore, the digital-to-analog conversion module converts the digital signal sent from the main control board into an analog signal, i.e. a corresponding voltage, so as to control the movement of the corresponding piezoelectric ceramic. More preferably, the digital-analog conversion module is in communication connection with the main control board through an SPI interface. Specifically, the digital-analog conversion module can be in communication connection with the main control board through 8 digital signal lines. The 4 digital lines are combined into a serial peripheral interface protocol (SPI), and the remaining four digital lines can implement other functions, such as detecting whether transmitted data is erroneous or not.

Preferably, the digital-to-analog conversion module can adopt a chip with the model number of AD5362BCPZ, can output 0V-10V voltage, and can reduce the amplification voltage required in a subsequent voltage amplification circuit; simultaneously, 8-channel voltage can be output so as to simultaneously control the positions of 8 laser beams; with a high precision resolution of 16 bits to allow precise control of the position of each laser beam; control may be by means of the SIP protocol.

Specifically, as shown in fig. 2, the digital-to-analog conversion module includes a chip IC41 and a power supply filtering module.

The port 46 (SCLK), the port 47 (SDI), the port 49 (SDO), the port 45 (SYNC), the port 5 (BUSY), the port 2 (CLR), the port 1 (LDAC) and the port 48 (PEC) of the chip IC1 are respectively in communication connection with the main control board to acquire the digital signal sent by the main control board.

The chip IC41 includes a port 34 (VOUT 1), a port 35 (VOUT 2), a port 36 (VOUT 3), a port 37 (VOUT 4), a port 15 (VOUT 5), a port 16 (VOUT 6), a port 17 (VOUT 7), and a port 18 (VOUT 8), which are electrically connected to the input terminals of the 8 output channel modules in a one-to-one correspondence manner, and are configured to output the converted analog signals to the corresponding output channel modules, respectively. Conversion of the digital signal to an analog signal is accomplished by chip IC 41.

Preferably, since the chip IC41 needs to use various power supplies, such as 3.3V, -4.5V, 11.5V, 5V, etc., when operating. In order to ensure the stability of each power supply, the power supply filtering module comprises a first 3.3V power supply filtering module, a second 3.3V power supply filtering module, a 5V power supply filtering module, an 11.5V power supply filtering module and a-4.5V power supply filtering module, which are used for filtering the corresponding power supply of the chip IC41 respectively.

Wherein, the first 3.3V power supply filtering module comprises a chip IC 5. The port 4 (VCC) and the port 3 (MR) of the chip IC5 are connected to a 3.3V power supply (P3V 3), the port 1 (VSS) is grounded, and the port 2 (RST) is electrically connected to the port 3 (RESET) of the chip IC41, so that the 3.3V power supply is filtered and then used by the chip IC 41. The model of the chip IC5 is STM811SW 16F. Port 3 of chip IC41 is also used to receive a RESET signal RESET for implementing the RESET of the digital-to-analog conversion block.

More specifically, the second 3.3V power filter module includes an inductor L0, a capacitor C20, a capacitor C22, and a capacitor C23. One end of the inductor L0 is connected to a 3.3V power supply, and the other end is electrically connected to the port 44 (DVCC) and the port 50 (DVCC) of the chip IC 41. One end of the capacitor R20 is grounded, and the other end is connected between the inductor L0 and the chip IC 41. One ends of the capacitor C22 and the capacitor C23 are grounded, and the other end of the capacitor C22 and the capacitor C23 are connected between the inductor L0 and the chip IC41 and used for filtering a 3.3V power supply, so that the stability of the power supply is ensured.

More specifically, the-4.5V power filter module includes a capacitor C24 and a capacitor C25. The ports 12 (VSS) and 29 (VSS) of the chip IC41 are connected to-4.5V (N4V 5). One ends of the capacitor C24 and the capacitor C25 are grounded, and the other ends of the capacitor C24 and the capacitor C25 are electrically connected with a port 12 (VSS) and a port 29 (VSS) of the chip IC41 and are used for filtering a-4.5V power supply to ensure the stability of the power supply.

More specifically, the 11.5V power filter module includes a capacitor C17 and a capacitor C18. Among them, the port 11 (VDD) and the port 28 (VDD) of the chip IC41 are connected to 11.5V (P11V 5). The capacitor C17 and the capacitor C18 are connected between the chip IC41 and the 11.5V power supply and used for filtering the 11.5V power supply, and the stability of the power supply is ensured.

More specifically, the 5V power filter module includes a chip IC6, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, and a capacitor C14. The port 2 (VIN) of the chip IC6 is connected to a 5V power supply, the port 4 (GND) is grounded, and the port 6 (VOUT) is electrically connected to the port 13 (VREF 1) of the chip IC41, so that the 5V power supply module is converted into a 2.5V power supply to be used by the chip IC 41. One end of the capacitor C10 and one end of the capacitor C11 are grounded, and the other end of the capacitor C10 and the other end of the capacitor C11 are electrically connected with a port 2 (VIN) of the chip IC6 and are used for filtering a 5V power supply.

One end of the capacitor C12, the capacitor C13 and the capacitor C14 is grounded, and the other end is connected between the chip IC6 and the port 13 (VREF 1) of the chip IC41, and is used for filtering the power input to the chip IC 41. The port 31 (VREF 0) of the IC41 is also electrically connected to the port 6 of the chip IC 6. Chip IC6 was model ADR421 ARMZ.

Preferably, port 4, port 19, port 38, port 52, port 43, port 51 of chip IC41 are all grounded.

Preferably, as shown in fig. 1, the driving circuit board of the present invention further includes a storage module for storing device parameters and the like of the driving circuit board so as to be used for identifying the device. Since the main control board of the ion trap quantum computer may be connected to other circuit boards in the actual application process, in order to facilitate the identification of the driving circuit board, the storage module is disposed on the driving circuit board in the present embodiment. The main control board obtains the equipment parameters through the storage module so as to be used for identifying the driving circuit board.

Preferably, the storage module is an EEPROM memory. The storage module is in communication connection with the main control board through an I2C protocol.

Preferably, an input end of the output channel module in the present invention is electrically connected to an output end of the digital-to-analog conversion module, and an output end of the output channel module is electrically connected to the piezoelectric ceramic, and is configured to filter and amplify the converted analog signal, and then send the signal to the piezoelectric ceramic, so as to control movement of the piezoelectric ceramic. Because the ion trap quantum computer controls a plurality of ions, the invention has a plurality of output channel modules, each output channel module correspondingly drives the movement of one piezoelectric ceramic, thereby realizing the control of the position of one laser beam. Preferably, as shown in fig. 1, there are 8 output channel modules in this embodiment. The input end of each output channel module is electrically connected with the output end of the digital-analog conversion module, and the output end of each output channel module is electrically connected with the corresponding piezoelectric ceramic and used for controlling the movement of the corresponding piezoelectric ceramic so as to realize the position control of the laser beam.

The output channel module in this embodiment is only one of the preferred embodiments, and the specific number thereof may be set according to the number of ions actually controlled or the requirement.

Preferably, when the digital-to-analog conversion module converts the signal, some high-frequency noise and the like may be generated. Therefore, the output channel module in this embodiment is further configured to perform processing such as filtering and boosting on the analog signal sent by the digital-to-analog conversion module, and send the analog signal to the piezoelectric ceramic, so as to eliminate high-frequency noise and the like generated in the operation process of the digital-to-analog conversion module. The output channel module firstly filters the analog signal sent by the digital-analog conversion module through a low-pass filter, then amplifies the filtered analog signal through an amplifier and then transmits the amplified analog signal to the corresponding piezoelectric ceramic.

Preferably, the output channel module converts the voltage signal input by the digital-to-analog conversion module into a high voltage signal by using a high voltage operational amplifier element, and outputs the high voltage signal to the piezoelectric ceramic to control the movement of the piezoelectric ceramic, thereby realizing the position control of the laser beam.

Specifically, as shown in fig. 3, the present invention provides a circuit diagram of one of the output channel modules, which includes an operational amplifier IC1, an operational amplifier IC2, an RC filter circuit composed of a resistor R1, a resistor R2, and a capacitor C1, a capacitor C20, a capacitor C21, a diode array, a resistor R3, a resistor R4, a resistor R5, a capacitor C3, and a filter circuit composed of a resistor R6, a resistor R10, and a resistor R11. The model of the operational amplifier IC2 is AD8675 ARMZ. The operational amplifier IC1 is model ADHV4702-1 BCPZ.

The inverting input terminal (-) of the operational amplifier IC2 is electrically connected to the output terminal of the operational amplifier IC2, and the non-inverting input terminal (+) is electrically connected to the corresponding output terminal of the digital-to-analog conversion module through an RC filter circuit composed of a resistor R1, a resistor R2, and a capacitor C1, and is used for filtering the analog signal. The positive power supply terminal (V +) of the operational amplifier IC2 is connected with an 11.5V power supply (P11V 5); one end of the capacitor C21 is grounded, and the other end is connected to the anode power supply end of the operational amplifier IC2 and is used for filtering the 11.5V power supply. The negative power supply (V-) of the operational amplifier IC2 is connected to a-4.5V power supply (N4V 5); one end of the capacitor C20 is grounded, and the other end is connected to the negative power supply terminal of the operational amplifier IC 2.

The non-inverting input terminal (IN +) of the operational amplifier IC1 is electrically connected to the output terminal of the operational amplifier IC2, and the output terminal is electrically connected to the corresponding piezoelectric ceramic through a filter circuit composed of a resistor R6, a resistor R10, and a resistor R11, and is configured to amplify the filtered analog signal and output the amplified analog signal to the corresponding piezoelectric ceramic to drive the piezoelectric ceramic to move.

The output terminal (OUT) of the operational amplifier IC1 is also grounded via a resistor R3, a resistor R4, and a resistor R5, and the inverting input terminal (IN-) is connected between the resistor R3 and the resistor R4.

The diode array includes a diode D2B, a diode D1A, a diode D1B, and a diode D2A. The four diodes are all BAV199 in model number. The cathode of the diode D2A is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected to the inverting input terminal of the operational amplifier IC1 through the diode D2B. The cathode of the diode D1B is connected between the operational amplifier IC1 and the operational amplifier IC2, and the anode is electrically connected to the inverting input terminal of the operational amplifier IC1 through the diode D1A.

Port 7 (VCC) of chip IC1 is connected to 200V power supply (P200V 0); one end of the capacitor C10 is grounded, and the other end is electrically connected to the port 7 of the chip IC 1. Port 1 (Reserved), port 3 (Reserved), port 10 (DGND), and port 13 (EP) of chip IC1 are grounded. Port 4 (VEF) of chip IC1 is connected to a-4.5V power supply (N4V 5).

Port 9 (RADJ) of chip IC1 is electrically connected to port 2 of switch SW 1. Port 3 of switch SW1 is connected to ground. Port 1 of switch SW1 is connected to ground through resistor R8. Port 2 of switch SW1 is also connected to ground through resistor R7. The switching of the switch SW1 can realize the switching of the signals output by the output terminal of the chip IC 1.

Preferably, the circuit diagrams of the plurality of output channel modules in the present invention are implemented identically.

Preferably, a second-order low-pass filtering module is further arranged between the output channel module and the piezoelectric ceramic. And the second-order low-pass filtering module is used for carrying out feedback control on the output channel module. Namely, the second-order low-pass filter can realize the amplification operation of the amplifier of the output channel module by using low-noise and low-power signals without using large voltage for control, thereby reducing the energy consumption of the system. Meanwhile, the analog signals processed by the output channel module can be further filtered, the stability of the signals is guaranteed, the signals can output high-quality direct current signals, the position of the laser beam is guaranteed to be accurate through movement of the piezoelectric ceramic, and accurate emission of the laser beam is achieved.

Preferably, the second-order low-pass filtering module comprises a switch module and a second-order low-pass filter, wherein the second-order low-pass filter is connected between the output channel module and the piezoelectric ceramic through the switch module. Specifically, as shown in fig. 4, the second-order low-pass filter module includes a switch module composed of a switch SW1A, a switch SW1B, a resistor R10 and a resistor R11, and a second-order low-pass filter composed of an operational amplifier IC1A, a resistor R12, a capacitor C1 and a capacitor C2.

The port 2 of the switch SW1A is electrically connected to the output end of the corresponding output channel module, the port 3 is electrically connected to the port 6 of the switch SW1B, the port 1 of the switch SW1A is electrically connected to the port 4 of the switch SW1B through the resistor R10 and the resistor R11, and the port 5 of the switch SW1B is electrically connected to the piezoelectric ceramic. The control of the output signal of the chip IC1 of the output channel module is realized by two switches, so that the signal output by the output channel module is output to the piezoelectric ceramic.

Preferably, the inverting input terminal (-) of the operational amplifier IC1A is further connected between the resistor R10 and the resistor R11 through the capacitor C1, the non-inverting input terminal (+) is grounded, the positive power terminal (V +) is connected to the +4.5V power supply, the negative power terminal (V-) is connected to the-4.5V power supply, and the output terminal is connected between the resistor R10 and the resistor R11 through the capacitor C2. One end of the resistor R12 is connected between the capacitor C11 and the inverting input terminal of the operational amplifier IC1A, and the other end is connected between the capacitor C2 and the output terminal of the operational amplifier IC 1A. The second-order low-pass filter isolates the high voltage output by the operational amplifier IC1A by adopting the capacitor C1 and the capacitor C2, so that the fluctuation of the direct-current voltage cannot influence the stability of the voltage output by the output channel module. Meanwhile, because the voltage signal output by the output channel module needs to be adjusted, and the filtering frequency is allowed to be 10HZ, the signal noise above 10HZ can be filtered through the second-order low-pass filter, and the accuracy of the output voltage is ensured.

Preferably, in the actual use process, a main control board of the ion trap quantum computer receives a command for controlling the position of the laser beam sent by an upper computer, converts the command into a digital signal, and sends the digital signal to a digital-to-analog conversion module of the driving circuit board through an SPI protocol; the digital-analog conversion module of the driving circuit board converts digital signals into analog signals, outputs high-quality direct current signals through each output channel module and the second-order low-pass filter, and further drives the corresponding piezoelectric ceramics to move, namely controls the position of the laser beam, so that the laser beam is accurately controlled.

Preferably, in order to ensure the normal operation of each output channel module, each output channel module is further provided with a monitoring module for monitoring the temperature of the corresponding output channel module.

More preferably, the monitoring module is electrically connected to the LED lamp, and is configured to control the LED lamp to display a corresponding color when the temperature of the corresponding output channel module exceeds a preset value, so as to remind a user that the temperature of the corresponding output channel module is too high. At the moment, an operator can know that the temperature in the corresponding output channel module is too high through the display color of the LED lamp, and can take closing measures for the channel, so that the problem that the equipment is damaged due to the fact that the running temperature of the equipment is too high is solved.

As shown in fig. 5, the present invention provides a circuit diagram of a monitoring module, which includes an operational amplifier IC1D, a filter circuit composed of a resistor R13 and a resistor R14, a resistor R15, and a resistor R16. The LED lamp is a light emitting diode LD 1D. The model of the operational amplifier IC1D is AD8544 ARZ.

The inverting input (-) of the operational amplifier IC1D is electrically connected to the corresponding output channel module, and is connected to the signal LED1, the signal LED1 in the figure is a TMP signal in the output channel module, that is, the inverting input of the operational amplifier IC1D is electrically connected to the port 8 of the chip IC 1. Meanwhile, the capacitor R9 is connected between the operational amplifier IC1D and the chip IC1 to filter the TMP signal, so as to ensure the stability of the signal.

The non-inverting input (+) of the operational amplifier IC1D is connected to a 3.3V power supply through a resistor R13.

One end of the resistor R14 is grounded, and the other end is connected between the resistor R13 and the operational amplifier IC 1D.

The negative electrode power supply end of the operational amplifier IC1D is grounded, the positive electrode power supply end is connected with a 3.3V power supply, and the positive input end is electrically connected with the output end of the operational amplifier IC1D through a resistor R15.

The operational amplifier amplifies the TMP signal of the output channel module, and since the voltage signal of the operational amplifier IC1D is related to the temperature, when the temperature reaches a certain set value, the TMP signal amplifies to turn on the diode monitor lamp, so as to prompt the user that the temperature is too high, and the output channel stops working. To serve the purpose of protecting the circuit.

Preferably, the present invention further comprises a power module. The power supply module is electrically connected with a main control board of the ion trap quantum computer, acquires power supply through the main control board, converts the power supply into power supply with various voltages, and supplies power to other modules on the driving circuit board.

Because the voltage of the working power supplies of different modules is different, the invention realizes the conversion of the power supplies with various voltages through the power supply module, and can ensure the normal work of each module on the driving circuit board.

Preferably, the power module in the invention is a power supply which is converted into various values by the 12V power acquired from the main control board, so as to be used by each module on the driving circuit board. At present, the voltages required by the driving circuit board in this embodiment include: 3.3V, +4.5V, -4.5V, 11.5V, 200V. The individual voltages are represented in the circuit diagram as follows: P12V0, P3V3, N4V5, P4V5, P11V5 and P200V 0.

According to the different voltages of the power conversion, the power module can be divided into a first power module, a second power module and a third power module.

The first power supply module is used for converting a 12V power supply into a 3.3V power supply, a 5V power supply, a-4.5V power supply and a +4.5V power supply. Specifically, for 12V to 3.3V, the conversion is realized by a DC-DC conversion chip, such as the chip IC7 shown in fig. 6; 12V to-4.5V and 12V to +4.5V, a 12V power supply is converted into-5V and +5V by a symmetrical voltage conversion chip IC9, and then the-5V voltage is converted into-4.5V voltage and the +5V voltage is converted into +4.5V voltage by low-noise and low-power voltage regulators respectively.

Specifically, as shown in fig. 6, the first power supply module includes a first LC filter circuit, a first filter circuit, a chip IC7, a second LC filter circuit, a resistor R19, and a resistor R20. The model number of the chip IC7 is TPS62175 DQC.

A12V power supply is connected to a port 2 (VIN) and a port 3 (EN) of the chip IC7 through a second filter circuit and a first LC filter circuit, and a 3.3V power supply is output from a port 9 (SW) through the second LC filter circuit.

The first filter circuit includes a capacitor C26 and a capacitor C27 connected in parallel. One ends of the capacitor C26 and the capacitor C27 are grounded, and the other ends are connected between the first LC filter circuit and the chip IC 7.

The first LC filter circuit includes a capacitor C52, a capacitor C53, and an inductor L4. One end of the capacitor C52 and one end of the capacitor C53 are grounded, and the other end of the capacitor C52 and the other end of the capacitor C53 are electrically connected with the input end of the chip IC7 through the inductor L4.

The second LC filter circuit includes an inductor L1, a capacitor C28, and a capacitor C29. One end of the capacitor C28 and one end of the capacitor C29 are grounded, and the other end of the capacitor C28 and the other end of the capacitor C29 are electrically connected with the output end of the chip IC1 through the inductor L1. One end of the resistor R19 is electrically connected to the port 9 of the chip IC7 through the inductor L1, and the other end is grounded through the resistor R20.

That is, the conversion of 12V power to 3.3V power is achieved by the chip IC 7.

Preferably, the first power supply module further comprises a second filter circuit, a chip IC9, a third LC filter circuit, a fourth LC filter circuit, a voltage regulator IC10, a voltage regulator IC11, a third filter circuit, a fourth filter circuit, a diode D3, a diode D1, a resistor R26, a resistor R25, a resistor R23, and a resistor R24. The type of the chip IC9 is MEA1D1205SC, and the types of the voltage regulator IC10 and the voltage regulator IC11 are LT1963ES 5-BYP.

The positive input end (VIN +) of the chip IC9 is connected to a 12V power supply through the second filter circuit and the first LC filter circuit, the negative input end (VIN-) is grounded, the positive output end (VOUT +) is electrically connected with the input end of the voltage stabilizer IC10 through the third LC filter circuit, the negative output end (VOUT-) is electrically connected with the input end of the voltage stabilizer IC11 through the fourth LC filter circuit, and the port 5 (OV) is grounded.

And the chip IC9 is used for converting the 12V power supply into a +5V power supply and a-5V power supply respectively, so that the +5V power supply and the-5V power supply can be processed subsequently to generate a +4.5V power supply and a-4.5V power supply.

The second filter circuit includes a capacitor C35 and a capacitor C36. One end of the capacitor C35 and one end of the capacitor C36 are grounded, and the other end of the capacitor C35 and the other end of the capacitor C36 are connected between the first LC filter circuit and the positive input end (VIN +) of the chip IC 9.

The second LC filter circuit includes an inductor L3, a capacitor C42, and a capacitor C43. One ends of the capacitor C42 and the capacitor C43 are grounded, and the other ends of the capacitor C42 and the capacitor C43 are connected between the inductor L3 and the voltage stabilizer IC 10; the inductor L3 is also electrically connected to the positive output terminal (VOUT +) of the chip IC 9.

The third LC filter circuit comprises an inductor L2, a capacitor C37 and a capacitor C38; one ends of the capacitor C37 and the capacitor C43 are grounded, and the other ends of the capacitor C37 and the capacitor C43 are connected between the inductor L2 and the voltage stabilizer IC 11; the inductor L2 is also electrically connected to the negative output terminal (VOUT-) of the chip IC 9.

The output terminal (OUT) of the voltage regulator IC10 outputs +4.5V through the third filter circuit, i.e., the voltage regulator IC10 is used to convert the +5V supply to a +4.5V supply.

The Output (OUT) of regulator IC11 outputs 4.5V through a fourth filter circuit, i.e., regulator IC11 is used to convert the-5V supply to a-4.5V supply.

Preferably, the third filter circuit includes a capacitor C45 and a capacitor C46, one end of the capacitor C45 and one end of the capacitor C46 are grounded, and the other end of the capacitor C45 and the other end of the capacitor C46 are electrically connected to the output end (OUT) of the voltage regulator IC 10.

The fourth filter circuit comprises a capacitor C40 and a capacitor C41, one end of each of the capacitor C40 and the capacitor C41 is grounded, and the other end of each of the capacitor C40 and the capacitor C41 is electrically connected with an output end (OUT) of the voltage regulator IC 11.

One end of the diode D3 is grounded, and the other end is electrically connected to the output terminal (OUT) of the regulator IC 10.

One end of the diode D1 is grounded, and the other end is electrically connected to the output terminal (OUT) of the regulator IC 11.

Preferably, as shown in fig. 7, the second power module is used for converting a 12V power into an 11.5V power, and specifically, a voltage regulator is used for transformation, an LC low-pass filter circuit is added at the front end of the voltage regulator, an LC low-pass filter circuit is added at the rear end of the voltage regulator to stabilize the output voltage, and a diode is added at the output end of the voltage regulator to prevent current backflow. Specifically, preferably, as shown in fig. 7, the second power supply module includes a fourth LC filter circuit, a regulator IC8, a fifth filter circuit, a diode D2, a resistor R21, and a resistor R22.

Voltage regulator IC8 is model LT1761ES 5-BYP.

The input end (port 1, IN) of the voltage regulator IC8 is connected to a 12V power supply through a fourth LC wave circuit, and the output end (port 5, OUT) outputs an 11.5V power supply through a fifth filter circuit. I.e., regulator IC8, for converting a 12V supply to an 11.5V supply.

One end of the resistor R21 is electrically connected to the output terminal of the regulator IC8, and the other end is grounded through a resistor R22.

One end of the diode D2 is grounded, and the other end is electrically connected with the output end of the voltage regulator IC8, so that the current of the voltage regulator is prevented from flowing backwards. In order to prevent the voltage regulator from generating reverse current and being damaged when the power supply is turned on or turned off, a diode D2 is added at the tail of the circuit to prevent the reverse current. The model of the diode D2 is SK 26A.

The fourth LC filter circuit includes a capacitor C30, a capacitor C31, and an inductor L7. One end of the capacitor C3 and one end of the capacitor C31 are grounded, and the other end is connected between the inductor L7 and the input end of the voltage regulator IC 8.

The fifth filter circuit includes a capacitor C33 and a capacitor C34. One end of the capacitor C33 and one end of the capacitor C34 are grounded, and the other end of the capacitor C33 and the other end of the capacitor C34 are electrically connected to the output end of the regulator IC 8. Port 3 (BYP) of regulator IC8 is also electrically connected to the output terminal of regulator IC8 via capacitor C32, and ground (Port 2, GND) is grounded to GND

Preferably, as shown in fig. 8, the third power supply module is used for converting 12V power supply into 200V power supply, which prevents pulse signals or noise of other modules from entering the circuit by using an LC low-pass filter circuit, and the filter frequency must be lower than the switching frequency of 200kHz of the voltage converter. Some piezoelectric devices may have an input voltage of less than 200V, and if the 200V output is used directly, the device may be damaged. A changeover switch (SW 0) is provided inside, by which the output voltage can be changed to three steps of 100V, 150V, 200V. R12-150B is a high output voltage isolation DC/DC converter, realizes the voltage conversion of 12V to 200V, and because the inside has a switching frequency of 200kHz, the output circuit needs to be added with a low-pass LC filter circuit. Specifically, as shown in fig. 8, the third power supply module preferably includes a fifth LC filter circuit, a regulator IC12, a sixth LC filter circuit, a switch SW0, a capacitor C49, a resistor R27, a resistor R28, and a resistor R29. The input end (port 22, port 23, + Vin) of the voltage regulator IC12 is connected to the 12V power supply through the fifth LC filter circuit, and the control end (port 8, port 17, VREF, port 9, port 16, VADJ) is electrically connected to the switch SW 0. Voltage regulator IC12 is model R12-150B.

The second pin (port 2) of the switch SW0 is grounded through a resistor R27, the third pin (port 3) is grounded through a resistor R28, and the first pin (port 1) is grounded through a resistor R29.

The output supply of the output (port 12, port 13, + Vout) of regulator IC12 is switched between the 100V supply, the 150V supply, and the 200V supply by control of switch SW 0. Specifically, when the second pin of the switch SW0 is in contact with the third pin, the output terminal of the chip IC12 outputs 150V power; when the second pin of the switch SW0 is contacted with the first pin, the output end of the chip IC12 outputs 100V power supply; when the second pin of the switch SW0 contacts the OFF pin (port 3 in the middle of port 1 in the figure), the output of the chip IC12 outputs 200 power.

Preferably, the fifth LC filter circuit includes an inductor L6, a capacitor C47, and a capacitor C48. One end of the capacitor C47 is grounded, and the other end is electrically connected to the input terminal of the regulator IC12 through the inductor L6. One end of the capacitor C48 is grounded, and the other end is connected between the inductor L6 and the input terminal of the regulator IC 12.

The sixth LC filter circuit comprises a capacitor C49, a capacitor C50, an inductor L5 and a capacitor C51. One end of the capacitor C49 is grounded, and the other end is connected to the output end of the regulator IC 12.

One end of the capacitor C50 and one end of the capacitor C51 are grounded, and the other end is electrically connected to the output end of the regulator IC12 through the inductor L5.

The invention realizes the control of the movement of the piezoelectric ceramics by combining the novel driving circuit board with the control of the piezoelectric ceramics, further realizes the control of the position of a laser beam, realizes the accurate control of the laser beam, and simultaneously can simultaneously control the movement of a plurality of piezoelectric ceramics, thereby solving the problem that the laser beam in the traditional ion trap quantum computer realized by AOM is limited by the number of channels and can not realize large-scale ion control. Meanwhile, the driving circuit board is communicated with the upper computer through the main control board of the ion trap quantum computer, and the control of the driving circuit board is realized through the upper computer, so that the operation mode of the ion trap quantum computer is simplified, and the operation of a user is facilitated.

Example two

Preferably, based on the foregoing embodiment, the present invention further provides another embodiment, which is an ion trap quantum computer, including a main control board, a piezoelectric ceramic, a laser emitter, and the laser beam alignment driving circuit board provided in the first embodiment.

The main control board is respectively electrically connected with the upper computer and the laser beam alignment driving circuit board and used for receiving a control instruction sent by the upper computer, generating a corresponding control signal according to the control instruction and sending the control signal to the laser beam alignment driving circuit board, and then driving the corresponding piezoelectric ceramic to move by aligning the laser beam to the driving circuit board, and then driving the laser emitter to move by the piezoelectric ceramic so as to realize the accurate control of the laser beam.

The laser beam alignment driving circuit board comprises a plurality of output channels, and each output channel correspondingly controls one piezoelectric ceramic. The laser beam is aligned to the driving circuit board to generate a corresponding driving signal to drive the piezoelectric ceramic to move, so that the reflection control of one path of laser beam is realized.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A laser beam alignment driving circuit board is applied to an ion trap quantum computer; the laser beam alignment driving circuit board is characterized by comprising a digital-analog conversion module and an output channel module; the input end of the digital-analog conversion module is electrically connected with the main control board of the ion trap quantum computer and is used for receiving a digital signal sent by the main control board of the ion trap quantum computer and converting the digital signal into an analog signal;

2. The laser beam alignment driving circuit board of claim 1, wherein the output channel module comprises a low pass filter and an amplifier; the low-pass filter is used for filtering the analog signal; the amplifier is used for amplifying the filtered analog signal;

3. The laser beam alignment driving circuit board according to claim 2, wherein a second-order low-pass filter module is disposed between each output channel module and the corresponding piezoelectric ceramic, and the second-order low-pass filter module is configured to filter the analog signal output by the corresponding output channel module and output the filtered analog signal to the piezoelectric ceramic; the second-order low-pass filter module comprises a switch module and a second-order low-pass filter; one end of the switch module is electrically connected with the output end of the corresponding output channel module, and the other end of the switch module is electrically connected with the corresponding piezoelectric ceramic; the switch module is also electrically connected with the second-order low-pass filter; the switch module comprises a switch SW1A, a switch SW1B, a resistor R10 and a resistor R11; the second-order low-pass filter comprises an operational amplifier IC1A, a resistor R12, a capacitor C1 and a capacitor C2;

4. The laser beam alignment driving circuit board according to claim 1, wherein each output channel module is further provided with a monitoring module and an LED lamp; one end of the monitoring module is electrically connected with the corresponding output channel module, and the other end of the monitoring module is electrically connected with the LED lamp and is used for monitoring the temperature of the corresponding output channel module and controlling the LED lamp to display the corresponding color so as to display the temperature of the corresponding output channel module;

5. The laser beam alignment driver circuit board of claim 1, wherein the digital-to-analog conversion module is communicatively coupled to a main control board of the ion trap quantum computer via an SPI interface.

6. The laser beam alignment driving circuit board of claim 5, wherein there are 8 output channel modules; the digital-analog conversion module comprises an AD5362BCPZ chip IC41 and a power supply filtering module; the chip IC41 is provided with 8 input ends which are respectively communicated with the ion trap quantum computer through an SPI protocol; the chip IC41 is provided with 8 output ends which are respectively electrically connected with the input ends of the 8 output channel modules; the plurality of power supply ends of the chip IC41 are also connected with corresponding power supplies through corresponding power supply filtering modules, and the corresponding power supplies comprise a 3.3V power supply, a 5V power supply, an 11.5V power supply and a-4.5V power supply.

7. The laser beam alignment driving circuit board of claim 1, further comprising a power module electrically connected to the main control board, the digital-to-analog conversion module, and the output channel module of the ion trap quantum computer, and configured to obtain a power supply from the main control board of the ion trap quantum computer, convert the power supply into a corresponding internal working power supply, and provide a working power supply for the digital-to-analog conversion module and the output channel module.

8. The laser beam alignment driving circuit board of claim 7, wherein the power module comprises a first power module, a second power module, and a third power module; the first power supply module comprises a 12V-to-3.3V power supply module, a 12V-to-4.5V power supply module and a 12V-to-4.5V power supply module, and is respectively used for converting a 12V power supply acquired from a main control board of the ion trap quantum computer into a 3.3V power supply, a-4.5V power supply and a +4.5 power supply; the second power supply module is used for converting a 12V power supply into an 11.5V power supply; the third power supply module is used for converting a 12V power supply into a 200V power supply module;

9. The laser beam alignment driving circuit board according to claim 1, further comprising a storage module, wherein the storage module is electrically connected to the main control board of the ion trap quantum computer, and is configured to store configuration parameters of the laser beam alignment driving circuit board, so that the main control board of the ion trap quantum computer can identify the laser beam alignment driving circuit board according to the configuration parameters.

10. An ion trap quantum computer comprising a main control board, a piezoelectric ceramic, a laser beam emitter, and a laser beam driving circuit board according to any one of claims 1 to 9; the piezoelectric ceramic is used for driving the position of the laser beam emitter to move; the piezoelectric ceramics and the laser beam emitters are multiple and the number of the piezoelectric ceramics and the laser beam emitters is the same as that of the output channel modules of the laser beam driving circuit board;