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What are the control methods for PWM control?

Basic principle of PWM control (Pulse Width Modulation) The control method is to control the on-off of the switching device of the inverter circuit, so that a series of pulses of equal amplitude are obtained at the output, and these pulses are used to replace the sinusoidal waveform or the desired waveform, that is, multiple pulses are generated in half a cycle of the output waveform, so that the equivalent voltage of the pulses is a sinusoidal waveform, and the obtained output is smooth and with fewer low ....
2024-09-27 10:44:11 1247
What are the control methods for PWM control?

Summary of commonly used motor control algorithms

Recently saw some friends are playing a variety of motors, for the motor is important to control, control is stable, accurate, fast is the ultimate goal of a control algorithm software engineers, first of all, you can play some of the more mature control algorithms to experience, so here to collect this piece of content to share with you. BLDC motor control algorithm Brushless motor belongs to the self-commutated type (self-direction conversion), so the control is more complex. BLDC motor control requires....
2024-09-23 15:31:11 479
Summary of commonly used motor control algorithms

This power technology, it's about to explode

Processors and data center architectures are changing to meet the higher voltage demands of servers running AI and large language models (LLMs). At one time, servers ran on a few hundred watts of power. But things have changed dramatically in the last few decades as the amount of data to be processed has increased dramatically and users demand faster data processing.NVIDIA's Grace Blackwell chips consume 5 to 6 kilowatts, which is roughly 10 times the total power consumed by servers in the past.1 The power ....
2024-09-19 10:44:42 743
This power technology, it's about to explode

Why is grounding resistance generally not greater than 4Ω?

Grounding resistance is the current from the grounding device into the earth and then flow through the earth to another grounding body or to the distant spread of the resistance encountered, which includes the grounding line and the grounding body itself, the resistance of the grounding body and the earth's resistance between the contact resistance and the resistance of the earth between the two grounding body or the earth grounding body to the infinite distance of the earth's resistance. The size of the gr....
2024-09-14 11:31:06 1405
Why is grounding resistance generally not greater than 4Ω?

About 485 communication instability problem solution

Preface 485 communication instability problems (specifically manifested as sometimes can communicate on, sometimes communication is not) RS485 in the connection with too many devices, communication distance is too long, twisted-pair cable quality is poor, wiring is not standardized and so on, will lead to communication instability problems. Solution: A few concepts about 485 bus. 1. 485 bus communication distance can reach 1200 meters. According to the theory of 485 bus structure, under the premise of....
2024-09-10 11:37:19 753
About 485 communication instability problem solution

Gallium Nitride Offers Powerful Solutions in High Voltage Applications

In the field of electrical engineering, the trend toward higher operating voltages is driven by the need for increased efficiency and power density in a variety of applications. Gallium Nitride (GaN) technology is emerging as a powerful solution to meet these needs. In industrial environments, internal voltage rails are also moving up. These higher voltages are critical for delivering higher power in applications such as motor drives, compressors and large HVAC systems. Rapidly growing consumer and industri....
2024-09-06 10:41:27 704
Gallium Nitride Offers Powerful Solutions in High Voltage Applications

How to reduce parasitic capacitance in PCB layout?

Noise in electronic systems can take many forms. Whether it is picked up from an external source or passed between different areas of a PCB layout, noise can be picked up unintentionally in two ways: parasitic capacitance and parasitic inductance. Parasitic inductance is relatively easy to understand and diagnose, both from a crosstalk perspective and from the coupling of seemingly random noise between different parts of the board. Dealing with parasitic capacitance is not necessarily more difficult, but it....
2024-09-04 10:58:42 1246
How to reduce parasitic capacitance in PCB layout?

Ultra-practical PCB layout wiring rules

Layout Component layout of the 10 rules: In accordance with the “first big and then small, first difficult and then easy” principle of layout, that is, the important unit circuits, core components should be prioritized layout. Layout should refer to the schematic block diagram, according to the main signal flow law of the single board to arrange the main components. Components should be arranged to facilitate debugging and maintenance, that is, small components around the large components can n....
2024-09-02 17:50:11 1404
Ultra-practical PCB layout wiring rules

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