There are three common current sensing methods for switch mode power supplies: using a sense resistor, using a MOSFET RDS(ON), and using the DC resistance (DCR) of the inductor. Each method has advant...
[i=s] This post was last edited by Zhang Feng on 2016-7-26 09:06 [/i] I feel that when GLOBAL_Q is 24, the function _IQmpy(a,b); seems to calculate the value in Q0 format if a is in Q0 format and b is...
I recently encountered a problem about relay backtest. Can you guys help me take a look?
The schematic diagram is as follows:The actual load is the LED light. Now we need to test the voltage and curre...
After the launch of STR91X for a long time, we have been designing network protocol stacks and new hardware, and are currently preparing to launch several products: 1. Network converter: Can--Ethenet,...
This question is very simple, as the title says: That is, for a specific requirement, suppose we use a family of sub-functions that can be executed independently to complete it. There must be more tha...
I use AD external reference voltage, and set the reference voltage selection bit to 0, that is, VR + =AV CC , VR -=AV SS , AV CC provides 3.3V voltage, can I give AV SS a negative voltage? For example...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
introduction
With the continuous optimization of surface mount technology (SMT) and the rapid development of chip component manufacturing technology, the application of chip mounters in the el...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to solve urgently. As an important method for detecting automobile exhau...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
5. Identifiers and keywords of C language
A complete PIC microcontroller C language program usually consists of six parts: include files (i.e. header files 1, variable definitions, variable de...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
Power technology
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