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Fault phenomenon of wrong connection of motor winding
The motor cannot start, the no-load current is too large or the imbalance is too large, the temperature rises too quickly or there is seve...[Details]
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This application note details Zero Dew Pulse-Width Modul (PWM) Control (ZDP). ZDP TM is an MPS proprietary, fixed frequency power supply control method that improves transient response over common ...[Details]
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Under the influence of the export control policy initiated by the US government, many international semiconductor companies have been "passively" caught in the crossfire. Policies and regulations ...[Details]
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A multi-channel frequency measurement system is designed. The system consists of analog switches, signal conditioning circuits, FPGA, and bus drive circuits. It can realize voltage division, amplific...[Details]
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Port multiplexing function Definition of port multiplexing STM32 has many built-in peripherals (such as serial port, ADC, DCA, etc.), and the external pins of these peripherals are multiplexed with G...[Details]
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1. Overview
At present, most battery monitoring modules are voltage patrol meters, which monitor the floating charge voltage of the battery online and give an alarm when it exceeds the set val...[Details]
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L1B is the power supply coil of this isolated power supply. Since this set of isolated power supply is a secondary coil loaded on the energy storage coil of the DC/DC, the structure is an open loop, ...[Details]
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On August 12, Sharp announced on August 9 that it was considering selling its semiconductor business and smartphone camera module business to Foxconn within this fiscal year. As for the sale amount...[Details]
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From April 26 to 27, 2019, the annual STMicroelectronics STM32 Summit was held as scheduled. The theme of this summit was "Gathering Wisdom, Creating the Future", focusing on three major technology t...[Details]
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Today, Honor 9X Pro officially landed in the Indian market, with a starting price of 17,999 rupees (approximately RMB 1,689). It will be officially launched on May 21. On the first day of sale, the p...[Details]
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1. Development Environment 1. Applicable chips: All STM32F4 chips 2. Firmware library: STM32F4xx_DSP_StdPeriph_Lib_V1.8.0 3,IDE:MDK517 2. Driver source code Delay.h File /**...[Details]
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In addition to the MCU DEVICE ID, the STM32F030 chip also has a UID that exists in other chips. Because the programming manual of the chip does not mention this UID, but from the results of my own te...[Details]
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Recently, the official Weibo account of Xiaomi Service Matters stated that Xiaomi has launched the Double 11 official guarantee service, with discounts starting at 20% off for all series. Th...[Details]
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0 Introduction
Looking at the development of 12V batteries for access networks in China, 2000 was a watershed year. Two things that happened in this year are worth reviewing again: Fi...[Details]
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In the last EV Focus column, we talked about why electric vehicles need to use 800V, and also roughly understood the relationship between SiC and 800V. In this issue, we will zoom in and talk about...[Details]