I have an ACS800-07 cabinet. After power-on, the POWER light of the DSU flashes, but no fault is displayed.
I have replaced the new board, but the fault still exists. Please help me analyze the cause....
The circuit working principle of the device is shown in Figure 21. LSE devices are connected in series in the three phases A, B, and C. When the three-phase power lines are intact, the ④ pin of the LS...
Why does SC16C55 always only send out the lower four bits of each byte, and the upper four bits are always F.The data of the eight input data lines of SC16C55 measured with an oscilloscope are all cor...
[font=宋体]In recent years, the intelligent transportation system has developed rapidly. It strives to effectively integrate advanced information technology, communication technology, computer technolog...
At MCU DAY in the first half of this year, people were still talking about launching MSP430 with ferroelectric memory (FRAM), but surprisingly it has already been launched.Ferroelectric memory is firs...
UHF and HF are both general technology categories, but each category has independent supporting protocols. HF is more consistent in the 13.56MHz frequency band, although there are many internation...[Details]
Radio Frequency Identification (RFID) technology is a non-contact automatic identification technology that uses wireless radio frequency communication. Compared with the currently widely used barco...[Details]
As the application scope of medical equipment expands from hospitals to emergency response and home medical environments, its mobility will be determined by many factors. In addition, medical equip...[Details]
This article introduces a miniature home electrocardiograph. The instrument has powerful functions: display monitoring, storage, playback, printing, record management, power alarm, telephone or Intern...[Details]
To help improve DC/DC conversion efficiency at lighter loads and higher frequencies, Schottky diodes can be integrated into MOSFET chips to form a single package to reduce power dissipation in the ...[Details]
Multi-parameter monitor is an important device in clinical nursing. It can monitor the patient's ECG, blood pressure, blood oxygen saturation, respiratory rate, pulse rate and temperature. At present,...[Details]
In a Class D audio power amplifier, the preamplifier is a relatively important module. It is located at the front of the entire topology and completes the processing of the input signal source,...[Details]
introduction
The data detected by various
measuring instruments
often need to be transferred to a PC for data processing and archiving, so as to make full use of the rich hardware an...[Details]
Power Integrations (PI) has introduced three charger/adapter reference designs using its new LinkSwitch-II series of AC-DC switching power conversion ICs. The new LinkSwitch-II devices use high-pre...[Details]
Abstract:
An amplifier solution for ceramic speaker systems is presented.
Keywords:
audio; ceramic speaker; amplifier; Class G
Today's portable devices require smaller, thinne...[Details]
Abstract This paper
introduces a wireless radio frequency transmission chip nRF9E5 based on 8051 core. The remote control system of flapping-wing micro-aircraft is made by using this chip. Th...[Details]
Development Status
Looking at the development of security monitoring technology: from the first generation of analog monitoring, to the second generation of digital monitoring, and then up...[Details]
0 Introduction
Due to the large number and variety of electronic equipment in special vehicles, the limited management capabilities of traditional semi-automatic power distribution methods...[Details]
1 Introduction
With the increasing electrification and automation of automotive parts and the high requirements for noise, electromagnetic compatibility and efficiency of automotiv...[Details]
0 Introduction
High-frequency switching power supplies have been widely used in the communication and low-voltage industries, and have gradually been used in power systems, due to their ad...[Details]