[backcolor=rgb(239, 245, 249)] As shown in Figure 1, this is my LED driver circuit, powered by a 5V switching power supply. When I use 50% PWM (100Hz) to control the IC, it will have the effect shown ...
As a hardware RD engineer, I believe you are familiar with constant current circuits. This article introduces the schematics of three constant current circuits.
Transistor constant current circuitTran...
This content is originally created by EEWORLD forum user yaohongxia0903 . If you want to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source. Lead-a...
The information about capacitor selection for different applications is quite good. Some application principles are explained vividly in the form of diagrams. I think it is worth reading....
In 2017,
Sanan Optoelectronics
achieved sales revenue of 8.394 billion yuan, operating profit of 3.856 billion yuan, and net profit attributable to shareholders of the parent company of 3.1...[Details]
On May 16, in response to
the public opinion storm caused by
Lenovo's
"
5G
voting" incident,
Lenovo
Holdings Chairman and
Lenovo
Group Founder Liu Chuanzhi, Lenovo Gr...[Details]
On May 8,
Google
I/O 2018 Developer Conference was held as scheduled in Mountain View, California. In the second year of the full promotion of the "AI first" strategy, artificial intelligen...[Details]
Introduction: As a power electronic device, the photovoltaic inverter mainly converts the direct current generated by the photovoltaic module into alternating current. Because there are thousands o...[Details]
STM32 has three startup modes. In RM0008 downloaded from the ST official website, you can find the startup-related configuration instructions: Translated into Chinese: The storage media corresp...[Details]
On January 30, the Tai'an Sports College coal-to-electricity thermal storage heating project designed and constructed by Shandong CITIC Energy successfully passed the acceptance. The acceptance tea...[Details]
This design is intended to take advantage of the above favorable conditions and propose an image acquisition solution based on the TMS320C6x11 series DSP. By taking advantage of the uniformity of...[Details]
;The chip is EM78P153 ;P64, P65 are connected to the crystal oscillator, the oscillation mode is 4MHz crystal oscillator ; Watchdog off, instruction cycle is 2 CLOCK, P63 is reset pin ;**************...[Details]
Ht47AD converter application include ht47c20.inc data .section 'data' Rs equ 0064h n db ? count db ? kh db ? kl db ? th db ? tl db ? int_count db ? ;---------------------------- code .section at 0 ...[Details]
1. Limiting filter method (also known as program judgment filter method) A. Methods: Based on experience, determine the maximum deviation allowed between two samples (set to A). Every time a new val...[Details]
Analysis of AVR's IO port characteristics:
Analyze the IO pin Pxn. Only when DDRxn is 1, the controllable unidirectional switch will work, and the value of PORTxn can be sent ...[Details]
How can a beginner have a good programming style? I would like to quote a story about a beginner asking a programming master for advice and let the readers understand it for themselves. There was a p...[Details]
The main control board of an industrial device is implemented using ATmega128. It is about 2 meters away from the control panel composed of buttons and LED displays managed by ATmega8. USART communic...[Details]
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