Simulation galvanometer driving circuit
By designing a simulated galvanometer drive circuit and combining it with preheating and water cooling modules, the problems of high precision and low heat generation in existing technologies have been solved, achieving high precision and efficient thermal management for laser marking and engraving equipment.
Patent Information
- Application Number
- CN202520268204.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing digital galvanometer drive circuits and conventional analog galvanometer drive circuits suffer from problems such as difficulty in achieving high precision, high heat generation, and low accuracy in high-end applications.
An analog galvanometer drive circuit is adopted, combined with a controller module, a driver module, an internal preheating module, and an external water cooling module. The power device is preheated by the internal preheating module to control the temperature difference within 5℃, and the water cooling module is used to cool it down, thereby improving the thermal balance effect.
It improves the precision and accuracy of laser marking and engraving equipment, enhances the thermal management of the driver, reduces heat generation, and improves the overall performance of the product.
Smart Images
Figure CN223911175U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to drive circuit technical field relates to an analog galvanometer drive circuit. BACKGROUND
[0002] With the development of laser industry, more and more high-end application industry uses laser marking and engraving. High-precision motor and corresponding driver for high-end application in laser marking and engraving process production are currently urgently needed. The existing technical scheme includes digital galvanometer drive and general analog galvanometer drive. Generally, it is difficult for enterprises to realize high-precision digital drive, and the cost is high. The heat output is large, and the higher precision is also difficult to achieve. The general analog galvanometer drive has large heat output and low precision. CONTENT OF THE UTILITY MODEL
[0003] To solve the problems in the background art, the utility model provides an analog galvanometer drive circuit.
[0004] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme as follows:
[0005] An analog galvanometer drive circuit comprises a controller module, a driver module, an internal preheating module, an actuator module and an external water cooling module.
[0006] The controller module is connected with the driver module, the driver module is connected with the actuator module, the internal preheating module is connected with the controller module, the internal preheating module is connected with the driver module, the controller module and the driver module are provided with cooling water channels, the cooling water channel of the external water cooling module is connected with the cooling water channel of the controller module, and the cooling water channel of the external water cooling module is connected with the cooling water channel of the driver module.
[0007] Further, the internal preheating module comprises a power input module, an adjustable LDO module and a heating sheet module.
[0008] The power input module is connected with the adjustable LDO module, the adjustable LDO module is connected with the heating sheet module, and the heating sheet module is arranged close to the controller module and the driver module.
[0009] Further, the heating sheet module comprises a capacitor C5 and a resistor R7.
[0010] The input end of the capacitor C5 is connected with the input end of the resistor R7, the output end of the capacitor C5 is connected with the ground, and the output end of the resistor R7 is connected with the ground.
[0011] Further, the adjustable LDO module comprises a time control module and an output power control module.
[0012] The time control module is connected with the output power control module.
[0013] Further, the time control module comprises a U1 chip, a capacitor C1, a capacitor C2, a resistor R1 and a resistor R2.
[0014] An input end of the resistor R2 is connected with a power supply, an output end of the resistor R2 is connected with an input end of the capacitor C2 and a pin 2 of the U1 chip, an output end of the capacitor C2 is connected with a pin 1 of the U1 chip, a pin 3 of the U1 chip is connected with the power supply, a pin 4 of the U1 chip is connected with the ground, the power supply, an input end of the resistor R1, an input end of the capacitor C1 and a pin 5 of the U1 chip are connected, an output end of the resistor R1 is connected with an output end of the capacitor C1 and the ground, and a pin 16 of the U1 chip is connected with the power supply.
[0015] Further, the output power control module comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a capacitor C4, a capacitor C5, a triode Q1 and a U2 chip, and a VO output port.
[0016] An input end of the resistor R8 is connected with a pin 7 of the U1 chip, an output end of the resistor R8 is connected with a base of the triode Q1, a collector of the triode Q1 is connected with an output end of the resistor R4, an input end of the resistor R3 and a pin 3 of the U2 chip, an emitter of the triode Q2 is connected with an output end of the resistor R3 and the ground, the power supply, an input end of the resistor R4, an input end of the capacitor C4 and a pin 1 of the U2 chip are connected, an output end of the capacitor C4 is connected with a pin 2 of the U2 chip and the ground, a pin 5 of the U2 chip is connected with an input end of the resistor R5, the VO output port and an input end of the capacitor C5, a pin 4 of the U2 chip is connected with an output end of the resistor R5 and an input end of the resistor R6, and an output end of the resistor R6 is connected with the ground.
[0017] Compared with the prior art, the utility model has the advantages of the following beneficial effects:
[0018] After power-on, the internal preheating module is used to heat the power device or the device with temperature rise in advance, and the temperature difference between the temperature during equipment operation and the temperature before operation is kept within 5 DEG C. On the basis of the existing driving scheme, the driver is improved, and the laser marking application precision is improved. The heat balance effect is improved, and the driver precision and product precision are improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Fig. 1 It is a simulation galvanometer driving circuit block diagram of the utility model;
[0020] Fig. 2 It is an internal preheating module structure block diagram of the utility model;
[0021] Fig. 3 It is an internal preheating module circuit connection drawing of the utility model. DETAILED DESCRIPTION
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figs. 1-3 As shown, the technical solution adopted by this utility model is as follows: a simulated galvanometer driving circuit, comprising: a controller module, a driver module, an internal preheating module, an actuator module, and an external water cooling module.
[0024] The controller module is connected to the driver module, the driver module is connected to the actuator module, the internal preheating module is connected to the controller module, the internal preheating module is connected to the driver module, the controller module and the driver module are equipped with cooling water circuits, the cold water circuit of the external water cooling module is connected to the cooling water circuit of the controller module, and the cold water circuit of the external water cooling module is connected to the cooling water circuit of the driver module.
[0025] The controller module, composed of digital or analog controllers, receives commands, processes them, and inputs them into the driver module. The driver module primarily consists of power devices, while the actuator module mainly comprises a motor and a load. The external water-cooling module mainly consists of a water-cooling system. The controller module and driver module together form an analog drive system.
[0026] After power-on, the heating element module is used to preheat the power devices or devices that are about to heat up. The purpose is to keep the temperature difference between the device during operation and the temperature before operation within 5 degrees Celsius, thereby improving the test accuracy.
[0027] The internal preheating module includes: a power input module, an adjustable LDO module, and a heating element module.
[0028] The power input module is connected to the adjustable LDO module, the adjustable LDO module is connected to the heating element module, and the heating element module is positioned close to the controller module and the driver module.
[0029] The heating element module includes capacitor C5 and resistor R7.
[0030] The input terminal of capacitor C5 is connected to the input terminal of resistor R7, the output terminal of capacitor C5 is connected to ground, and the output terminal of resistor R7 is connected to ground.
[0031] The input power is fed into the adjustable LDO module, which then outputs a heating element module to preheat the area or device that needs to be preheated.
[0032] The adjustable LDO module comprises a time control module and an output power control module.
[0033] The time control module is connected with the output power control module.
[0034] The time control module controls how long the adjustable LDO module works or how long the adjustable LDO module starts to work, and the output power control module controls the output power by adjusting the output voltage of the adjustable LDO module.
[0035] The time control module comprises a U1 chip, a capacitor C1, a capacitor C2, a resistor R1 and a resistor R2.
[0036] The input end of the resistor R2 is connected with a power supply, the output end of the resistor R2 is connected with the input end of the capacitor C2 and the pin 2 of the U1 chip, the output end of the capacitor C2 is connected with the pin 1 of the U1 chip, the pin 3 of the U1 chip is connected with the power supply, the pin 4 of the U1 chip is connected with the ground, the input end of the power supply and the input end of the resistor R1, the input end of the capacitor C1 and the pin 5 of the U1 chip are connected, the output end of the resistor R1 is connected with the output end of the capacitor C1 and the ground, and the pin 16 of the U1 chip is connected with the power supply.
[0037] The pin 1 of the U1 chip is a CX1 pin, which is a control signal input end, receives an external control signal and is used for controlling the working state of the chip.
[0038] The pin 2 of the U1 chip is a RXCX_1 pin, which is an inverted control signal input end, receives an external inverted control signal and is used for controlling the working state of the chip.
[0039] The pin 3 of the U1 chip is a RESET_1 pin, which is a reset signal input end, receives a reset signal and is used for restoring the chip to an initial state.
[0040] The pin 4 of the U1 chip is a +TR_1 pin, which is a trigger signal input end, receives a trigger signal and is used for starting a specific function of the chip.
[0041] The pin 5 of the U1 chip is a -TR_1 pin, which is an inverted trigger signal input end, receives an inverted trigger signal and is used for starting a specific function of the chip.
[0042] The pin 7 of the U1 chip is a Q_1 pin, which is an output signal end and is used for outputting a signal processed by the chip.
[0043] The pin 8 of the U1 chip is a VSS pin, which is a power supply negative input end and provides a negative voltage required by the chip for working.
[0044] The pin 16 of the U1 chip is a VDD pin, which is a power supply positive input end and provides a positive voltage required by the chip for working.
[0045] The output power control module comprises resistors R3, R4, R5, R6, R7, R8, capacitors C4 and C5, a triode Q1 and a U2 chip, and a VO output port.
[0046] The input end of the resistor R8 is connected with pin 7 of the U1 chip, the output end of the resistor R8 is connected with the base of the triode Q1, the collector of the triode Q1 is connected with the output end of the resistor R4, the input end of the resistor R3 and pin 3 of the U2 chip, the emitter of the triode Q2 is connected with the output end of the resistor R3 and the ground, the power supply is connected with the input end of the resistor R4, the input end of the capacitor C4 and pin 1 of the U2 chip, the output end of the capacitor C4 is connected with pin 2 of the U2 chip and the ground, pin 5 of the U2 chip is connected with the input end of the resistor R5, the VO output port and the input end of the capacitor C5, pin 4 of the U2 chip is connected with the output end of the resistor R5 and the input end of the resistor R6, and the output end of the resistor R6 is connected with the ground.
[0047] Pin 1 of the U2 chip is an IN pin, which is an input pin, used for receiving external input signals or voltages.
[0048] Pin 2 of the U2 chip is a GND pin, which is a ground pin, used for providing a reference voltage for the chip, and is the reference zero point of the entire circuit.
[0049] Pin 3 of the U2 chip is an EN pin, which is an enable pin, by applying a specific voltage level to the pin, the chip can be controlled whether to work or not.
[0050] Pin 4 of the U2 chip is an FB pin, which is a feedback pin, used for feeding back part of the chip's output signals to the chip's internal, so that the chip can adjust its output characteristics according to the feedback signals, to realize precise control of the output.
[0051] Pin 5 of the U2 chip is an OUT pin, which is an output pin, the processed signals or voltages of the chip are output from the pin, used for driving external loads or connecting and interacting with other circuits.
[0052] When the U2 chip is powered on, through the decoupling capacitor C4, the resistor R4 and the resistor R3, the pin 3 of the U2 chip is in a high level state, so that the chip U2 is in a normal working state, and the output value of the VO output port can be adjusted through the resistor R5 and the resistor R6, wherein the VO output port outputs a VO output power supply.
[0053] The capacitor C5 is an energy storage capacitor for the VO output power supply, so that the chip U2 can normally and stably output.
[0054] The resistor R7 is a PTC heating sheet, and the resistance value of the PTC heating sheet is selected according to the required preheating power.
[0055] The U1 chip is a monostable multivibrator, after the chip is powered on, the value of the resistor R2 and the capacitor C2 can be adjusted to control the pin 7 of the U1 chip to output high level for how long.
[0056] In the embodiment, the pin 7 of the U1 chip outputs high level after 1 second, the resistor R8 makes the transistor Q1 conduct, the pin 3 of the U2 chip obtains low level, the U2 chip stops working, the pin 5 of the U2 chip outputs 0V, and the resistor R7, i.e. the PTC heating sheet, stops heating.
[0057] Before 1 second, the U2 chip normally works, and the resistor R6 and the resistor R5 adjust the voltage value of the VO output port.
[0058] When the output power of the pin 5 of the U2 chip is too large, the temperature of the internal preheating module rises, the resistance value of the NTC resistor R6 rises, the output of the VO output port decreases, and the output power of the pin 5 of the U2 chip decreases.
[0059] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A galvanometer driving circuit characterized by comprising: It comprises a controller module, a driver module, an internal preheating module, an actuator module and an external water cooling module. The controller module is connected with the driver module, the driver module is connected with the actuator module, the internal preheating module is connected with the controller module, the internal preheating module is connected with the driver module, the controller module and the driver module are internally provided with cooling waterways, the cooling waterway of the external water cooling module is connected with the cooling waterway of the controller module, and the cooling waterway of the external water cooling module is connected with the cooling waterway of the driver module.
2. The analog galvanometer driving circuit according to claim 1, wherein The internal preheating module comprises a power input module, an adjustable LDO module and a heating sheet module. The power input module is connected with the adjustable LDO module, and the adjustable LDO module is connected with the heating sheet module.
3. The analog galvanometer driving circuit according to claim 2, wherein The heating sheet module comprises a capacitor C5 and a resistor R7. The input end of the capacitor C5 is connected with the input end of the resistor R7, the output end of the capacitor C5 is connected with the ground, and the output end of the resistor R7 is connected with the ground.
4. The analog galvanometer driving circuit according to claim 3, wherein The adjustable LDO module comprises a time control module and an output power control module. The time control module is connected with the output power control module.
5. The analog galvanometer driving circuit according to claim 4, wherein The time control module comprises a U1 chip, a capacitor C1, a capacitor C2, a resistor R1 and a resistor R2. The input end of the resistor R2 is connected with a power supply, the output end of the resistor R2 is connected with the input end of the capacitor C2 and the pin 2 of the U1 chip, the output end of the capacitor C2 is connected with the pin 1 of the U1 chip, the pin 3 of the U1 chip is connected with the power supply, the pin 4 of the U1 chip is connected with the ground, the input end of the power supply and the resistor R1 and the input end of the capacitor C1 and the pin 5 of the U1 chip are connected, the output end of the resistor R1 is connected with the output end of the capacitor C1 and the ground, and the pin 16 of the U1 chip is connected with the power supply.
6. The analog galvanometer driving circuit according to claim 5, wherein The output power control module comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a capacitor C4, a capacitor C5, a triode Q1, a U2 chip and a VO output port. The input end of the resistor R8 is connected with the pin 7 of the U1 chip, the output end of the resistor R8 is connected with the base of the triode Q1, the collector of the triode Q1 is connected with the output end of the resistor R4, the input end of the resistor R3 and the pin 3 of the U2 chip, the emitter of the triode Q2 is connected with the output end of the resistor R3 and the ground, the power supply is connected with the input end of the resistor R4, the input end of the capacitor C4 and the pin 1 of the U2 chip, the output end of the capacitor C4 is connected with the pin 2 of the U2 chip and the ground, the pin 5 of the U2 chip is connected with the input end of the resistor R5, the VO output port and the input end of the capacitor C5, the pin 4 of the U2 chip is connected with the output end of the resistor R5 and the input end of the resistor R6, and the output end of the resistor R6 is connected with the ground.