Power Factor CorrectionPower factor correction (PFC) is mainly used to improve the ratio of effective power to apparent power at the input of the power supply. It is one of the common circuits in swit...
[size=4] Ultra-low standby power consumption of less than 90mW without auxiliary AC/DC power supply reference design. The PMP21251 reference design uses the UCC28056 CRM/DCM PFC controller, UCC256304 ...
# 3D printer project - STM32F7508-DK environment creation (I) I found out from the Internet that smoothieware.org launched a FreeRTOS system V2. I have always wanted to try it out. It happened that [*...
Ladies and Gentlemen, since the ciss, coss, and crss of mosfet can reflect the turn-on and turn-off performance of discrete devices, why are coer and cotr still required in the specification?...
[b][color=#5E7384]This content is originally created by EEWORLD forum user [size=3]tiankai001[/size]. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and...
Recently, Zhao Gang's research group at the School of Information Science and Technology of USTC proposed a new flexible electronic device preparation technology that combines nanofiber electrospinni...[Details]
A. The whole board is not bright
1. Check whether the power supply and signal line are connected.
2. Check whether the test card can identify the interface. If the red light o...[Details]
Pulse power supply can change the electrodeposition process of metal ions by controlling the waveform, frequency, duty cycle and average current density of the output voltage, so that the electrodepos...[Details]
Lishen Battery, a long-established power battery company, has started capital operations. Recently, China Chengtong Holdings' listed company Meiliyun announced that it is planning to issue shares to T...[Details]
Not long ago, Huawei held a folding screen flagship and all-scenario new product launch conference, releasing more than a dozen products of various sizes at once. The most attractive one among them i...[Details]
As the industry upgrades to 2.5G and 3G systems, power amplifier designers today face new design challenges. The proposed hybrid system enables service providers to smoothly transition to 3G systems ...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
0 Introduction
Ultrasonic waves are mechanical vibrations in elastic media. They are caused by a vibration source in contact with the medium, and their frequency is above 20kHz. Since the speed o...[Details]
Based on the advantages of safety and energy density, solid-state batteries are recognized as the main direction of future development of power batteries and the focus of new energy companies. On Aug...[Details]
All PLC encryptors have two good reasons.
One is to protect intellectual property rights, and the other is to demand project payment.
Intellectual property protectionists say ...[Details]
Apple has always been very conservative in its baseband selection and never pursues the latest, so it is inevitable that they missed the X60 this time. Qualcomm has officially demonstrated th...[Details]
According to the Nikkei report, multiple sources told the Nikkei Asian Review that Huawei is worried that company insiders may cooperate with US intelligence agencies to leak secret data, so it is re...[Details]
Mouser Electronics, an electronic component distributor focused on introducing new products that drive industry innovation, has announced a new book, The Future of Robotics, in collaboration with Tex...[Details]
State Grid Gansu Electric Power Company reported on the 25th that the cumulative installed capacity of new energy storage in Gansu Province has reached 4.011 million kilowatts, and the total energy ha...[Details]
Power technology
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