I have a DC current source with an output of 0~20ma, and I want to enlarge it to 0~100ma. I use this circuit diagram, why does the LED have a weak brightness when the input is 0? Can you analyze it or...
Here the program is required to start in a minimized window mode. Here in OnInitDlg(), ShowWindow(SW_MINIMIZE) is used; the window will flash, at least the title bar above will change. Is there any wa...
[i=s]This post was last edited by qwqwqw2088 on 2017-6-21 10:20[/i] [size=4]Recently I have seen in the forum that some students who are [color=black]beginning to learn[/color] Altium Designer softwar...
I would like to set up Altium Designer 16 to automatically save files at a scheduled time, so that I will not lose my files due to some accidents and can recover certain losses....
[font=Arial]The RIoTboard, like most low-cost ARM development boards, has an on-chip RTC, but the designers of the board didn't provide a way to connect a backup battery, which makes the on-chip RTC p...
I. The most basic question type (Explanation: This type of question type is relatively simple) QUOTE: 1. How many 9s are there from 1 to 100? 2. How many groups of consecutive integers sum to 1000? 3....
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
The Portable Digital Data Acquisition System (PDDAS) uses LabVIEW Real-Time and PXI to control the wind tunnel test and record air pressure data from 128 different channels.
"The LabVIEW Real-...[Details]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
1. Introduction
With the gradual automation and modernization of industrial control systems, fieldbus control systems have received more and more attention and application. CAN bus is currentl...[Details]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
1 Introduction
The Third Steel Plant of Jigang Group is a key investment project of Jigang Group during the "15th Five-Year Plan". It has introduced first-class domestic and foreign advanced eq...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
store
To prevent moisture, LEDs should be stored in a dry and ventilated environment with a storage temperature of -40°C to +100°C and a relative humidity below 85%.
The LED should be use...[Details]