①Send a reset signal with a pulse width greater than 1 μs, waiting for the completion of the auto-negotiation process;
â‘¡ Query the fifth bit of the basic mode status register (BMSR). When this bit goes high, it indicates that the auto-negotiation process is complete and the wait is over;
â‘¢ Query the 15, 14, 13, 12, and 11 bits of the BMSR to obtain the working mode of the Ethernet interface;
â‘£ Configure the working mode of LPC23xx Ethernet controller.
Figure 3 The hardware circuit of the PHY device of the Ethernet interface
APM programmable AC Power Supply is a switching mode single-channel output AC source with wide range of adjustable frequency, developed for aerospace or military`s 400Hz and 800Hz test applications, such as lab use, compliance test, and quality assurance.APM adjustable ac power supply is ideal for commercial, power electronics, avionics, military and regulation test applications from bench-top testing to mass production.
The AC source is capable of delivering up to 5 times of peak current compared to its maximum rated current that makes it ideal for inrush current test.
Some features as below:
- 5.6"large touch color screen
- AC+DC mixed or independent output mode
- Capable of setting output slope/phase angle
- Built-in IEC standard test function
- Built-in multiple protections
- Built-in power meter
- Support impedance function
- Support for LIST/PULSE/STEP mode & Transient mode
- Standard RS232/RS485/USB/LAN, Optional GPIB/multiphase card.
- Support master and slave parallel mode to realize power extension
- Support harmonics/inter-harmonics simulation and measuring function
- Support for USB data import/export and scree nap from front panel
- PWM technologies, with up to 86% efficiency
- CE, CSA, UL, ROHS Certified
2000W AC Power Supply,AC Output Power Supply,Ac Adapter Power Supply,2000W Switching Power Supply
APM Technologies Ltd , https://www.apmpowersupply.com