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March 23, 2022, Shanghai - Recently, Shanghai Fudan Microelectronics Group Co., Ltd. launched a low-power MCU series with integrated capacitive touch button controller - FM33FR0. This series has be...[Details]
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FOC, also known as vector control, is a variable frequency drive control method that controls the three-phase DC brushless motor by controlling the amplitude and frequency of the inverter output vo...[Details]
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Signal Description
The block connections in the diagram show, at an abstract level, a producer-consumer relationship where data is passed from one functional block to another. However, for sim...[Details]
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Overview
The relocation code copies the BootLoader itself from Flash to SDRAM so that it can jump to SDRAM for execution. Relocation is required because the execution speed in Flash is relativ...[Details]
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Check the AC and DC voltage of the circuit; it is convenient to use a pointer multimeter or a setting multimeter to check the continuity of the circuit. The following figure shows the UT61C digital m...[Details]
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As the unit brightness continues to increase, LEDs are increasingly used in the lighting field. In order to continue to increase the brightness of LEDs, it is inevitable to increase the area and po...[Details]
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The Series D funding
will be used to scale up 24M's manufacturing and contribute to the company's development of higher energy density electric vehicle batteries. Image: 24M.
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What does rail-to-rail operational amplifier mean?
Operational amplifiers (often referred to as "op amps") are widely used circuit units with ultra-high magnification. They can be composed of discr...[Details]
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Program features: 1. Enumerate the STM32 USB as a HID device. 2. STM32 uses 3 endpoints, endpoint 0 is used for enumeration, and endpoints 1 and 2 are used for data transmission and reception. 3. T...[Details]
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In the test room of Tianjin China Automotive Technology Research Center, a steel needle with a diameter of 8mm pierced through the whole pack of ternary lithium batteries. Subsequently, a small amoun...[Details]
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The 51 microcontroller is a commonly used microcontroller chip that is widely used in the control and calculation of various electronic devices. The crystal oscillator is very important in the microc...[Details]
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Today, many engineers use OTDR fiber optic testers to maintain and locate faults in fiber optic links. In this issue, we will introduce the compensation fiber needed for Fluke OTDR fiber optic testin...[Details]
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According to foreign media reports, Apple removed the "ratings and reviews" function on its official website on November 17, and this modification affects all products. It is not clear why Apple did ...[Details]
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Working principle of motor jog control
Inching control means that when the button is pressed, the motor is powered on and starts running, and when the button is released, the motor loses power...[Details]
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Traffic lights are a kind of traffic safety management facility. Traditional traffic lights are mainly composed of power supply, light source, lamp housing, reflective bowl (i.e. parabolic reflecto...[Details]
Power technology
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