Template machine four-motor driver integrated circuit

Abstract

The utility model relates to the field of driving of template machines, in particular to a template machine four-motor driver integrated circuit which comprises two stepping driving circuits, two servo driving circuits and a high-frequency power supply circuit, the high-frequency power supply circuit is connected with AC220V voltage and outputs 110V voltage and 15V voltage, and the stepping driving circuits and the servo driving circuits are connected with the high-frequency power supply circuit. A 110V voltage and a 15V voltage output by the high-frequency power supply circuit are connected to the two stepping drive circuits and the two servo drive circuits; the power supply circuit is designed into the high-frequency power supply circuit and can output 110V voltage, so that power can be supplied to the four drivers at the same time, resource reuse of the four drivers is realized, the use difficulty of a user is reduced, and the manufacturing cost is further reduced.

Description

Technical Field

[0001] The present application relates to the field of template machines, and in particular to a four-motor driver integrated circuit of a template machine. Background Art

[0002] The template machine is a clothing template engraving machine, which is used for clothing production. Its driving part is generally composed of four motors, namely two stepper motors and two servo motors. Therefore, four drivers are required. The driver needs to be connected to the power supply. The required power supply needs to output 110V and 15V voltages, so a driving power supply is needed. The existing template machine driving power supply is composed of a ring transformer and a switching power supply. The input AC220V voltage is converted into AC110V voltage through the ring transformer, and then the AC110V voltage is converted into 110V voltage and 15V voltage through the switching power supply circuit to output to the driver for power access. However, the existing structures are like this Figure 2 As shown, each stepper motor or servo motor driver needs to be equipped with a separate driving power supply. The wiring of the separate driving power supply structure is complicated, the cost is high, and it is inconvenient to use. Therefore, it is urgent to design a power supply structure that can provide integrated driving power for four-motor drivers. Utility Model Content

[0003] The purpose of this application is to provide a template machine four-motor driver integrated circuit, in which the power supply circuit is designed as a high-frequency power supply circuit, which can output a voltage of 110V, so that four drivers can be powered at the same time, realizing resource reuse of the four drivers, reducing the difficulty of user use, and thereby reducing manufacturing costs.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a template machine four-motor driver integrated circuit, including two stepper drive circuits and two servo drive circuits, and also including a high-frequency power supply circuit. The high-frequency power supply circuit is connected to AC220V voltage and outputs 110V voltage and 15V voltage, and the 110V voltage and 15V voltage output by the high-frequency power supply circuit are connected to the two stepper drive circuits and the two servo drive circuits.

[0005] Preferably, the high-frequency power supply circuit includes a common-mode inductor L6, a rectifier bridge BD2 and a 162KHz high-frequency transformer TR2. The two input ends of the common-mode inductor L6 are connected to the live wire and the neutral wire of the connected AC220V voltage. The output end of the common-mode inductor L6 is connected to the input end of the rectifier bridge BD2. The rectifier bridge BD2 converts the AC into DC and then outputs it. The output end is respectively connected to the two input ends of the high-frequency transformer TR2 through two MOS tubes that can control the switching time. The output end of the high-frequency transformer TR2 outputs 110V voltage and 15V voltage after filtering by multiple inductors.

[0006] Preferably, a varistor VZ5 and a varistor VZ6 are connected between the two input ends of the common-mode inductor L6, and the other ends of the varistor VZ5 and the varistor VZ6 are connected to the gas discharge tube GS2 and then grounded. Several resistors and capacitors are connected to the common-mode inductor L6 and the rectifier bridge BD2 for filtering.

[0007] By adopting the above solution, the design of the varistor can protect the component from the influence of the surge generated by switching or lightning strike.

[0008] Preferably, the two MOS tubes are specifically MOS tube Q3 and MOS tube Q4, pin 2 of MOS tube Q3 and pin 2 of MOS tube Q4 are respectively connected to the two output ends of rectifier BD2, pin 3 of MOS tube Q3 and pin 3 of MOS tube Q4 are both connected to pin 4 of high-frequency transformer TR2, and pin 1 and pin 3 of MOS tube Q3 and pin 1 and pin 3 of MOS tube Q4 are both connected through two reverse voltage regulator diodes.

[0009] Preferably, the output end of the high-frequency transformer TR2 is connected with an energy storage inductor L7 and a filter circuit, and the filter circuit filters the peak currents of the two output ends of 15V and 110V respectively.

[0010] In summary, the beneficial technical effects of this application are:

[0011] The power supply circuit is designed as a high-frequency power supply circuit. After the AC 220V input is filtered by the common-mode inductor and rectified by the rectifier bridge, it becomes a DC power of more than 300 volts. After controlling the switching time of the two MOS tubes, it is converted into a 162KHz high-frequency power supply. After the high-frequency transformer outputs the desired voltage, it can output a 110V voltage. In this way, four drivers can be powered at the same time, realizing resource reuse of the four drivers, reducing the difficulty of user use, and thus reducing manufacturing costs; the design of the varistor protects the components from the impact of surges induced by switching or lightning strikes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the four-motor driver integrated circuit of the template machine in this application.

[0013] Figure 2 It is a schematic diagram of the existing four-motor drive of the template machine.

[0014] Figure 3 It is the circuit schematic diagram of the high-frequency power supply circuit.

[0015] Figure 4 This is a partial enlarged circuit diagram of the common-mode inductor L6 and the rectifier bridge BD2.

[0016] Figure 5It is a local amplification circuit diagram of two MOS tubes and high-frequency transformer TR2.

[0017] Figure 6 It is a local amplification circuit diagram of the output end of the high-frequency transformer TR2. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0019] The present application discloses a template machine four-motor driver integrated circuit, such as Figure 1 and Figure 3 As shown, it includes two stepping drive circuits and two servo drive circuits, and also includes a high-frequency power supply circuit. The high-frequency power supply circuit is connected to an AC220V voltage and outputs a 110V voltage and a 15V voltage, and the 110V voltage and the 15V voltage output by the high-frequency power supply circuit are connected to the two stepping drive circuits and the two servo drive circuits. The high-frequency power supply circuit includes a common-mode inductor L6, a rectifier bridge BD2 and a 162KHz high-frequency transformer TR2. The two input ends of the common-mode inductor L6 are connected to the live wire L and the neutral wire N of the connected AC220V voltage, and the output end of the common-mode inductor L6 is connected to the input end of the rectifier bridge BD2. The rectifier bridge BD2 converts AC into DC and then outputs it. The output end is respectively connected to the two input ends of the high-frequency transformer TR2 through two MOS tubes that can control the switching time. The output end of the high-frequency transformer TR2 outputs a 110V voltage and a 15V voltage after being filtered by multiple inductors.

[0020] like Figure 3 and Figure 4 As shown, a varistor VZ5 and a varistor VZ6 are connected between the two input ends of the common-mode inductor L6. The other ends of the varistor VZ5 and the varistor VZ6 are connected to the gas discharge tube GS2 and then grounded. The varistor VZ5, the varistor VZ6 and the gas discharge tube GS2 form a lightning surge protection circuit. The common-mode inductor L6 and the rectifier bridge BD2 are connected to a number of resistors and capacitors for filtering. Specifically, the live wire L passes through the fuse FS2, is filtered through the common-mode inductor L6, and passes through the rectifier bridge BD2 to Filter capacitors EC3 and EC4; the neutral line N passes through the CN2 connector, passes through the NTC current limiting resistor RT2, is filtered by the common mode inductor L6, and passes through the rectifier bridge BD2 to the filter capacitors EC3 and EC4, among which R105 and R103 form the discharge circuit of the safety capacitor, among which capacitors CX4, CX3, and CY6 form the safety capacitor part to play the role of power supply filtering, and respectively filter the common mode and differential mode interference, among which R104 discharges the EC3 and EC4 capacitors when the mains power is off.

[0021] Specifically, Figure 3 , Figure 5 and Figure 6 As shown, the two MOS tubes are specifically MOS tube Q3 and MOS tube Q4. Pin 2 of MOS tube Q3 and pin 2 of MOS tube Q4 are respectively connected to the two output ends of rectifier BD2. Pin 3 of MOS tube Q3 and pin 3 of MOS tube Q4 are both connected to pin 4 of high-frequency transformer TR2. Pin 1 and pin 3 of MOS tube Q3 are connected through two reverse diodes ZD5 and ZD6. Pin 1 and pin 3 of MOS tube Q4 are connected through two reverse voltage zener diodes ZD7 and ZD8. The output end of high-frequency transformer TR2 is connected with energy storage inductor L7 and eight filter circuits. The first filter circuit is composed of resistors R96, R97, R98, R99 and C65, which filters the peak current. Resistors R96, R97, R98 and R99 are connected in parallel to increase the heat dissipation area. The second filter circuit is composed of resistors R106, R107, R108, R109 and C70, which filters the peak current. Resistors R106, R107, R108 and R109 are connected in parallel to increase the heat dissipation area. The third filter circuit is composed of CE6, C67, C69 and C68. The third filter circuit is connected with a common mode inductor L5. The common mode inductor L5 is connected with a fourth filter circuit composed of CE5 and C66. The fourth filter circuit filters the 15V after passing through the common mode inductor L5. The fifth filter circuit is composed of resistors R112, R113, R114, R115 and C71 are used to filter the peak current. Resistors R112, R113, R114 and R115 are connected in parallel to increase the heat dissipation area. The sixth filter circuit is composed of resistors R119, R120, R121, R122 and C76 to filter the peak current. Resistors R119, R120, R121 and R122 are connected in parallel to increase the heat dissipation area. The seventh filter circuit is composed of CE7, C72 , C74, and C73. The seventh filter circuit is connected with a common-mode inductor L8, and the common-mode inductor L8 is connected with an eighth filter circuit composed of CE8 and C75. The fourth filter circuit filters the 110V after passing through the common-mode inductor L8. In addition, R100 and LED6 are connected to the 15V output terminal to form an indication circuit of the 15V voltage state, and the resistor R101 discharges 15V after power-off, and the resistor R116 discharges 110V after power-off.

[0022] like Figure 5 and Figure 6As shown, the current flow direction of the output end of the high-frequency transformer TR2 is: 15V voltage output part: when MOS tubes Q3 and Q4 are turned on at the same time, the energy is transferred to the 11-12 winding through the 4-5 winding of the high-frequency transformer TR2. The current passes through the 12th pin of the high-frequency transformer TR2, and then passes through D25, and then flows to the 4th pin through the 3rd pin of the energy storage inductor L7, and then flows to the 11th pin of the high-frequency transformer TR2 through the common-mode inductor L5. When MOS tubes Q3 and Q4 are turned off at the same time, the high-frequency transformer TR2 does not transfer energy. The current flow direction of the secondary side of the high-frequency transformer TR2 is that the energy stored in the energy storage inductor L7 is released, and the current starts from the 4th pin of the energy storage inductor L7, flows to the common-mode inductor L5, and then passes through D23. Flows to pin 3 of the energy storage inductor L7; 110V voltage output part: when MOS tubes Q3 and Q4 are turned on at the same time, the energy is transferred to the 7-8 winding through the 4-5 winding of the high-frequency transformer TR2. The current passes through pin 8 of the high-frequency transformer TR2, and then passes through D26, and then flows to pin 2 through pin 1 of the energy storage inductor L7, and then flows to pin 7 of the high-frequency transformer TR2 through the common-mode inductor L8. When MOS tubes Q3 and Q4 are turned off at the same time, the high-frequency transformer TR2 does not transfer energy. The current flow direction of the secondary side of the high-frequency transformer TR2 is that the energy stored in the energy storage inductor L7 is released, and the current starts from pin 2 of the energy storage inductor L7, flows to the common-mode inductor L8, and then passes through D28 and flows to pin 1 of the energy storage inductor L7.

[0023] The four drive circuits all include a power access port and an encoder access port. The power access port is used to access the voltage output by the high-frequency power supply circuit, while the encoder access port is used to access the control signal output by the control module, thereby controlling the operation of the two servo motors and the two stepper motors. The two voltages output by the high-frequency transformer TR2 are filtered by multiple inductors to obtain 110V and 15V voltages that can be connected to the four drive circuits. The four drive circuits can be connected at the same time to realize resource reuse of the four drivers, reduce the difficulty of use for users, and thus reduce the manufacturing cost; and the design of the varistor protects the components from the influence of surges induced by switches or lightning strikes.

[0024] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above examples is only used to help understand the method and core idea of ​​the utility model; the above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above-mentioned technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A template machine four-motor driver integrated circuit, including two stepper drive circuits and two servo drive circuits, characterized in that: It also includes a high-frequency power supply circuit, which is connected to an AC220V voltage and outputs a 110V voltage and a 15V voltage, and the 110V voltage and the 15V voltage output by the high-frequency power supply circuit are connected to two stepping drive circuits and two servo drive circuits.

2. A template machine four-motor driver integrated circuit according to claim 1, characterized in that: The high-frequency power supply circuit includes a common-mode inductor L6, a rectifier bridge BD2 and a 162KHz high-frequency transformer TR2. The two input ends of the common-mode inductor L6 are connected to the live wire and the neutral wire of the AC220V voltage. The output end of the common-mode inductor L6 is connected to the input end of the rectifier bridge BD2. The rectifier bridge BD2 converts the AC into DC and then outputs it. The output end is respectively connected to the two input ends of the high-frequency transformer TR2 through two MOS tubes that can control the switching time. The output end of the high-frequency transformer TR2 outputs 110V voltage and 15V voltage after being filtered by multiple inductors.

3. A template machine four-motor driver integrated circuit according to claim 2, characterized in that: A varistor VZ5 and a varistor VZ6 are connected between the two input ends of the common-mode inductor L6. The other ends of the varistor VZ5 and the varistor VZ6 are connected to a gas discharge tube GS2 and then grounded. Several resistors and capacitors are connected to the common-mode inductor L6 and the rectifier bridge BD2 for filtering.

4. A template machine four-motor driver integrated circuit according to claim 2, characterized in that: The two MOS tubes are specifically MOS tube Q3 and MOS tube Q4. Pin 2 of MOS tube Q3 and pin 2 of MOS tube Q4 are respectively connected to the two output ends of rectifier BD2, pin 3 of MOS tube Q3 and pin 3 of MOS tube Q4 are both connected to pin 4 of high-frequency transformer TR2, and pin 1 and pin 3 of MOS tube Q3 and pin 1 and pin 3 of MOS tube Q4 are both connected through two reverse voltage-stabilizing diodes.

5. The template machine four-motor driver integrated circuit according to claim 2, characterized in that: The output end of the high-frequency transformer TR2 is connected with an energy storage inductor L7 and a filter circuit, and the filter circuit filters the peak currents of the two output ends of 15V and 110V respectively.

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