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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 1161
What are the control methods for PWM control?

EPM7256AETI144-7N CPLD: Features, Applications and Datasheet

EPM7256AETI144-7N Description The EPM7256AETI144-7N is a member of Intel / Altera's EPM7256AE family and belongs to the CPLD (Complex Programmable Logic Device) category. It has 5000 gates and supports supply voltages ranging from 3 V to 3.6 V. The chip also has some other technical specifications such as a large cell count of 256, a Logic Array Block (LAB) count of 16, a maximum operating frequency of 172.4 MHz, and a propagation delay maximum of 5.5 ns. It also has 36 inputs/outputs (I/Os) and is RoHS com....
2024-09-26 11:12:26 1067
EPM7256AETI144-7N CPLD: Features, Applications and Datasheet

EPM7064AETC100-10N CPLD: Features, Applications and Datasheet

EPM7064AETC100-10N Description The EPM7064AETC100-10N is a CPLD (Complex Programmable Logic Device) from Intel / Altera's EPM7064AE family. It has 1250 gates and supports supply voltages ranging from 3 V to 3.6 V. The chip is packaged in a TQFP-100 package and features a 64-cell macrocell count, 4 Logic Array Blocks (LABs), a maximum operating frequency of 222.2 MHz, a propagation delay maximum of 4.5 ns, and 68 inputs/outputs (I/Os). It is also RoHS compliant and is of the EEPROM memory type. EPM7064AETC....
2024-09-24 14:55:47 1326
EPM7064AETC100-10N CPLD: Features, Applications and Datasheet

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 15:31:11 393
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 10:44:42 669
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 1227
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 11:37:19 683
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 10:41:27 612
Gallium Nitride Offers Powerful Solutions in High Voltage Applications

5CEFA9F23I7N FPGAs:Features, Applications and Datasheet

5CEFA9F23I7N Description Altera's (now part of Intel) StratixV series FPGA chip is called 5CEFA9F23I7N. Its technical specs include 484FBGA packaging, 224 I/Os, 14251008 total RAM bits, and a -40°C to 100°C operational temperature range. Application fields include industrial automation, test and measurement equipment, high-performance computing, video and image processing, and communications and networking. 5CEFA9F23I7N Features High Performance and Flexibility: The 5CEFA9F23I7N offers a substanti....
2024-09-05 15:56:14 1253
5CEFA9F23I7N FPGAs:Features, Applications and Datasheet

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 10:58:42 996
How to reduce parasitic capacitance in PCB layout?

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