1. Introduction In response to the complex wiring, single control, and low reliability issues of servo motor remote control, a new method for controlling servo motors using the CANopen communication protocol and the drive sub-protocol is proposed. This article analyzes the object dictionary and message format of the CANopen protocol, detailing the transitions of each … Read more
Author Introduction Engaged in the control development of three-phase asynchronous motors and permanent magnet synchronous motors for over ten years, proficient in sensorless FOC control. Products involved include inverters, servos, power tools, vacuum cleaners, propellers, drones, air compressors, etc. Power range includes 100W to 100kW, voltage range includes 14VDC to 660VAC. Since 2020, I have … Read more
Long press the QR code to recognize, follow, click “Skill Enhancement” to browse technical articles and download free materials. The article is long, it is recommended to save it for later use, all images in the article can be clicked to enlarge for clarity! Guide Different motor control methods, different components selected in the system, … Read more
Author Introduction Engaged in the control development of three-phase asynchronous motors and permanent magnet synchronous motors for over ten years, proficient in sensorless FOC control. The products involved include inverters, servos, power tools, vacuum cleaners, propellers, drones, air compressors, etc. The power range covers 100W to 100kW, and the voltage range includes 14VDC to 660VAC. … Read more
Word Count: 10000 Content Quality: ⭐⭐⭐⭐⭐ Whether for beginners or electronic enthusiasts who have dabbled in microcontrollers, car projects are a common experience. Today, I will introduce a project based on the STM32 ultrasonic obstacle avoidance car. This was also one of my course projects, and I am sharing it as open source. The full … Read more
Source | Renesas Embedded Encyclopedia What is a rotary transformer? It is an electromagnetic sensor used to measure the angular displacement and angular velocity of rotating objects. As shown in the figure below, the rotary transformer consists of a stator and a rotor, with the rotor typically fixed to the motor shaft, rotating synchronously. The … Read more
The rotary transformer sensor is widely used in motor systems. This article introduces the motor control solutions from Renesas for rotary transformer sensors. The electromagnetic theory behind rotary transformer sensors is fundamentally similar to that of ordinary transformers. Please see the example below: It mainly consists of excitation windings, sine windings, and cosine windings. The … Read more
1 Robotic Arm System Structure The robotic arm system includes a computer control terminal, a visual positioning module, a USB to CAN module, and an electric joint module, as shown in Figure 1. Figure 1: Robotic Arm System Structure The visual positioning module provides a description of the end effector’s position in Cartesian space. This … Read more
Search on WeChatElectrical Engineering Learning 1. Thyristor Speed Control Circuit 2. Electromagnetic Speed Control Motor Control Diagram 3. Three-Phase Four-Wire Energy Meter Transformer Wiring 4. Energy Consumption Braking 5. Sequential Start, Reverse Stop 6. Boiler Water Level Detection Device 7. Motor Forward and Reverse Control Circuit 8. Electric Hoist Crane Circuit 9. Single-Phase Leakage Switch … Read more
The chip programming leader ACROVIEW Technology recently announced the latest iteration of its programming software, along with a series of newly compatible chip models. In this update, the mixed-signal chip OB6625VK from OnBright Integrated Circuits has been supported by ACROVIEW’s offline programmer tool AP8000. OB6625VK is a highly integrated, high-performance, low-cost three-phase brushless DC motor … Read more