Reverse connection prevention protection adjustable step-down steering engine distribution board circuit
By using an adjustable step-down servo motor circuit with reverse connection protection, the problems of inconsistent drive voltage and insufficient current of the servo motor are solved. This achieves voltage adjustment and device protection, improves the stability and safety of the servo motor drive, and reduces costs.
Patent Information
- Application Number
- CN202423291302.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the existing technology, the driving voltage requirements of small servo motors vary and the current is relatively large, which can easily lead to excessive load, insufficient current, unstable control, and damage to the device due to reverse power supply.
The adjustable step-down servo power distribution board circuit with reverse connection protection is adopted, including a rectifier bridge reverse connection protection circuit and a potentiometer adjustable output voltage DC-DC power supply circuit. Combined with the drive control parallel shunt pin circuit, the voltage is adjusted by the DC-DC power chip and the heat dissipation design of the PCB board to achieve voltage adjustment and protection.
It avoids component damage caused by reverse power supply insertion, reduces loss costs, improves the stability and safety of servo motor drive, adapts to the voltage requirements of various servo motors, and reduces the overall cost of servo motor drive.
Smart Images
Figure CN223785954U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor control technology, and in particular to an adjustable step-down servo motor circuit with reverse connection protection. Background Technology
[0002] With the increasing popularity of robots driven by small servo motors, the driving voltage required by various servo motors varies, generally ranging from 3.3V to 12V, which is different from the voltage commonly used in control circuits. In addition, servo motors require a large current, which can easily lead to excessive load and insufficient current. At the same time, motor control is inconvenient and unstable. To address this, a reverse connection protection adjustable step-down servo motor power distribution board circuit is proposed. Utility Model Content
[0003] To address the technical problems existing in the prior art, this utility model provides an adjustable step-down servo motor circuit with reverse connection protection.
[0004] This utility model is achieved by the following technical solution: a reverse connection protection adjustable step-down servo motor power distribution board circuit, including a rectifier bridge reverse connection protection circuit, wherein the rectifier bridge reverse connection protection circuit is connected to a potentiometer adjustable output voltage DC-DC power supply circuit, and the potentiometer adjustable output voltage DC-DC power supply circuit is connected to a drive control parallel shunt pin circuit.
[0005] Diodes D1 and D2 are connected to capacitor C5, resistor R1, and pin 2 of DC-DC power chip U2. Diodes D1, D2, D3, D4, and pin 1 of H1 interface are connected to capacitor C5.
[0006] The inductor L1, potentiometer R4, and capacitor C4 are connected to pin 1 of pin headers H5, H6, H7, H8, H9, and H10.
[0007] As a further improvement to the above scheme, the potentiometer-adjustable output voltage DC-DC power supply circuit also includes capacitors C1, C2, and C3, and resistors R2 and R3.
[0008] As a further improvement to the above solution, the drive control parallel shunt pin circuit also includes a pin header U1.
[0009] A reverse connection protection adjustable step-down servo power distribution board includes a PCB board, on which the reverse connection protection adjustable step-down servo power distribution board circuit is carried.
[0010] As a further improvement to the above solution, the PCB board is provided with heat dissipation holes, and the heat dissipation holes are connected to the copper pour of the PCB board. The PCB board is also provided with mounting holes.
[0011] The above technical solution enables PCB board heat dissipation, allowing PCB board components to dissipate heat quickly.
[0012] As a further improvement to the above solution, the PCB board is provided with a GND plane.
[0013] The above technical solution enables PCB board connector protection.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention avoids damage to components caused by reverse power supply insertion, reduces costs, and improves safety. Based on the requirements of the servo motor, it enables output voltage adjustment, allowing multiple servo motors to be powered using a single reverse-connection protected adjustable step-down servo motor power distribution board. This significantly reduces the cost of servo motor drives, improves their stability, and solves the problem of adapting to different voltage requirements of various servo motors and replacing power supply components. Attached Figure Description
[0016] Figure 1 The circuit diagram of an adjustable step-down servo motor circuit with reverse connection protection provided by this utility model. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0018] Example 1:
[0019] Please combine Figure 1 The reverse connection protection adjustable step-down servo motor power distribution board circuit of this embodiment includes a rectifier bridge reverse connection protection circuit, the rectifier bridge reverse connection protection circuit is connected to a potentiometer adjustable output voltage DC-DC power supply circuit, and the potentiometer adjustable output voltage DC-DC power supply circuit is connected to a drive control parallel shunt pin circuit.
[0020] Diodes D1 and D2 are connected to capacitor C5, resistor R1, and pin 2 of DC-DC power chip U2. Diodes D1, D2, D3, D4, and pin 1 of H1 interface are connected to capacitor C5.
[0021] Inductor L1, potentiometer R4 and capacitor C4 are connected to pin 1 of pin header H5, pin 1 of pin header H6, pin 1 of pin header H7, pin 1 of pin header H8, pin 1 of pin header H9 and pin 1 of pin header H10.
[0022] The potentiometer-adjustable output voltage DC-DC power supply circuit also includes capacitors C1, C2, and C3, and resistors R2 and R3.
[0023] The drive control parallel shunt pin circuit also includes pin header U1;
[0024] The DC-DC power chip U2 model is: SGM61220XTN6G / TR.
[0025] Example 2:
[0026] A reverse connection protection adjustable step-down servo power distribution board includes a PCB board, and the PCB board carries the reverse connection protection adjustable step-down servo power distribution board circuit.
[0027] The PCB board has heat dissipation holes, which are connected to the copper pour of the PCB board. The PCB board also has pre-drilled mounting holes.
[0028] The PCB board has a GND plane.
[0029] Working principle:
[0030] Power enters through interface H1, then is rectified by diodes D1, D2, D3, and D4, filtered by capacitor C5, and then transmitted to DC-DC power chip U2. After voltage regulation by DC-DC power chip U2, the power is transmitted to inductor L1 to form the drive voltage. At the same time, potentiometer R4 is used to adjust the output magnitude of the drive voltage. Subsequently, pin headers H5, H6, H7, H8, H9, and H10 are connected to the corresponding servo motors, and pin header U1 is used for power supply, control signal input, and control signal output operations.
[0031] This design avoids damage to components caused by reverse power supply insertion, reduces losses and costs, and improves safety. According to the requirements of the servo motor, the output voltage can be adjusted, and multiple servo motors can be powered by a single reverse-connection protected adjustable step-down servo motor power distribution board circuit. This significantly reduces the cost of servo motor drive, improves the stability of servo motor drive, and solves the problem of adapting to different voltage requirements of various servo motors and replacing power supply components.
[0032] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A reverse polarity protection adjustable step-down servo motor circuit, characterized in that, It includes a rectifier bridge reverse connection protection circuit, which is connected to a potentiometer adjustable output voltage DC-DC power supply circuit, and the potentiometer adjustable output voltage DC-DC power supply circuit is connected to a drive control parallel shunt pin circuit. Diodes D1 and D2 are connected to capacitor C5, resistor R1, and pin 2 of DC-DC power chip U2. Diodes D1, D2, D3, D4, and pin 1 of H1 interface are connected to capacitor C5. Inductor L1, potentiometer R4 and capacitor C4 are connected to pin 1 of header H5, pin 1 of header H6, pin 1 of header H7, pin 1 of header H8, pin 1 of header H9 and pin 1 of header H10.
2. The reverse polarity protection adjustable step-down servo motor circuit as described in claim 1, characterized in that, The potentiometer-adjustable DC-DC power supply circuit also includes capacitors C1, C2, and C3, and resistors R2 and R3.
3. The reverse polarity protection adjustable step-down servo motor circuit as described in claim 1, characterized in that, The drive control parallel shunt pin circuit also includes a pin header U1.
4. A reverse polarity protection adjustable step-down servo motor distributor, characterized in that, Includes a PCB board, which carries the reverse connection protection adjustable step-down servo motor power distribution board circuit as described in claim 1.
5. The reverse polarity protection adjustable step-down servo motor distributor as described in claim 4, characterized in that, The PCB board is provided with heat dissipation holes, which are connected to the copper pour of the PCB board, and the PCB board has reserved mounting holes.
6. The reverse polarity protection adjustable step-down servo motor distributor as described in claim 4, characterized in that, The PCB board is provided with a GND plane.