In order to make the output light load current of 50mA work in CCM mode with low noise, according to calculation, (12V-3.3V)*12V/3.3V/650000Hz/0.1A=0.00048H=480uH. How come it is dozens of uH?...
[i=s]This post was last edited by Digital Leaf on 2022-3-22 22:55[/i]Everyone knows about the Harmony system now, but no one has actually experienced it. This time I just happened to have the opportun...
[i=s]This post was last edited by bqgup on 2021-4-1 22:20[/i] ## HC05 Bluetooth module debugging document with buttons##1. Hardware tool introduction###1. HC05 Bluetooth module ###2. USB to TTL module...
This content is provided by EEWORLD Forum1. UnboxingI am honored to participate in the evaluation of the Infineon Position2Go radar kit. After a week of waiting, the board was finally delivered to me ...
The operational amplifier in the figure is powered by a single power supply, with a resistor of 10K and a capacitor of 10nF. When R1C1=R2C2=R3C3, the frequency generated by the circuit is 1/2*Pi*R*C=1...
The rapid development of electronic technology and microcomputers has promoted the rapid development and widespread application of microcomputer control technology. Small and medium-sized single-...[Details]
A friend once asked me on the BBS what does {} mean? What is its function? There are many brackets in C, such as {}, , (), etc., which really confuse some beginners. In some languages such as VB,...[Details]
今天，博主@熊猫很禿然爆料，本月将要发布的新品有OPPO Reno系列、Redmi Note系列、vivo S系列、iQOO Neo系列以及iQOO Z系列等等，其中OPPO Reno系列为Reno8新品。 According to previously leaked information, the OPPO Reno8 series is the world's first Q...[Details]
An amplifier is used to increase the strength of the input signal and should provide an amplified version of the signal in the output. Audio amplifiers are widely used in stereo or home theatre sys...[Details]
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This function is rewritten based on the online program. Serial port 5 uses interrupt reception. When 20 characters are received, 20 numbers are returned to the PC. For details, see the main functi...[Details]
The compressor is a part of the car air conditioner. It compresses the refrigerant into high-temperature and high-pressure gas, which then flows through the condenser, throttle valve and evaporat...[Details]
At today's 2023 Huawei Smart Car Solution Conference, Huawei Smart Car Solution BU CEO Yu Chengdong delivered a speech. Now smart electric cars will recreate the transformation from feature phon...[Details]
To eliminate the losses of adding a PFC front-end stage to an offline power converter, some designers use various PFC topologies such as a PFC boost follower to reduce switching losses and/or an in...[Details]
On October 21, according to the announcement made by the imec Microelectronics Research Center in Belgium on the 10th of this month, several important companies including Arm, BMW Group, and Bosch ...[Details]
Shanghai, China - March 17, 2022 - Lattice Semiconductor, a leading supplier of low-power programmable devices, announced an update to its mVision™ solution set, which expands the functionality of ...[Details]
The Ministry of Industry and Information Technology released a list of new energy vehicle models exempted from vehicle purchase tax that will be revoked, showing that after the 19th and 20th batches ...[Details]
According to foreign media reports, on November 12, local time, leading travel supplier DENSO announced an investment in German company Lambda:4, which mainly uses low-power Bluetooth technology (BLE...[Details]
Instruments and meters will usher in spring, and forward-looking enterprises have made preparations for the spring. Some enterprises have been developing, producing and manufacturing new, more practi...[Details]
In order to solve the problem that the single-phase bridge inverter drive circuit requires three independent power supplies, a simple switching power supply is designed. The circuit is shown in Figur...[Details]
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