The inverter is a power converter in the motion control system. Today's motion control system includes a variety of technical fields, and the general development trend is: AC drive, high frequency pow...
Design of high-precision semiconductor laser drive power supply and temperature control circuit: In order to solve the problem that the output power and wavelength of the semiconductor laser light sou...
LM3S3739 JTAG port lock problem, tried all the methods found on the Internet but none of them worked, I only have JLINK V8, SEGGER is V4.15W. I changed a new film and can see the device, one is to unl...
I have been busy lately and will be on a business trip next week, so the update is a bit slow. Microbit's current progress: [list=1] [*]PCB is being made[*]Components have been purchased[*]Should be r...
Today I found a magical phenomenon. When I powered on the CYCLONE IV I had programmed, all the IO outputs were around 1.5V, and the program obviously did not run. However, when I plugged in and unplug...
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]
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]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[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]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
Current sensing in automotive applications includes controlling the current through solenoids and injectors. For example, during diesel injection, we rapidly increase the current to the induction i...[Details]
1 Introduction
With the rapid development of my country's economy, the country has introduced a series of policies such as preferential policies, subsidy policies, and old-for-new policies, wh...[Details]
Introduction
Every year, cars are equipped with more complex electronic systems to maximize comfort, safety, and performance while minimizing harmful emissions. According to market resea...[Details]
This paper mainly studies the parallel current sharing technology of Droop method DC/DC converters, and designs a current sharing converter with parallel output of two DC/DC converters based ...[Details]
Compared with other air conditioning systems, ground source heat pump systems have outstanding advantages. Since the temperature deep in the ground remains unchanged all year round, it is much higher ...[Details]
This paper mainly studies the parallel current sharing technology of Droop method DC/DC converters, and designs a current sharing converter with parallel output of two DC/DC converters based on flybac...[Details]
Fairchild
Semiconductor
has released the latest
LED driver
products FAN5701 and
FAN5702
, which have a peak efficiency of 92% and can extend battery life for designers of
mo...[Details]
LED lighting
has become the focus of widespread attention for its high energy saving, long life and environmental protection. There are successful cases in the field of functional lighting in...[Details]
1.
AC LED
is not a fundamental change in the device.
In other words, there actually does not exist an LED chip that works with an alternating electric field mechanism. The AC LED that is now a...[Details]