I use the following method to control the ultrasonic generator to send ultrasonic waves
On the left are two complementary outputs, a 50% duty cycle, and a 40KHz square wave frequency.
In the middle is
I would like to ask the moderator, for the helper2416 development board, the driver fails to create a device node by calling class_create. Is it because the root file system does not support the udev
【Chuanglong TL570x-EVM 】Review 01 - UnboxingPhysical appearanceThis industrial control board of Chuanglong is of high quality, and is designed and manufactured with great care. It has good stability a
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