-
//建立窗口
win1 = newwin(15, 50, 1, 1)
box(win1, ACS_VLINE, ACS_HLINE)
mvwprintw(win1, 2,1, "WINDOW 1")
mvwprintw(win1, 4,1, "Press any key SWITCHING to window 2")
win2 = newwin(15, 40, 4, 20)
box(win2, ACS_VLINE, ACS_HLINE)
mvwprintw(win2, 2,1, "WINDOW 2")
//建立子窗口
subwin = derwin(win2, 5, 25, 4, 5)
box(subwin, ACS_VLINE, ACS_HLINE)
mvwprintw(subwin, 2,1, "Sub Window of Window2")
//刷新屏幕
refresh()
wrefresh(win1)
wrefresh(win2)
touchwin(win1)
wrefresh(win1)
getch()
touchwin(win2)
mvwprintw(win2, 12,1, "Press any key to exit...")
wrefresh(win2)
//等待按鍵
getch()
//結束
delwin(win1)
delwin(subwin)
delwin(win2)
endwin()
標簽：
ACS_VLINE
ACS_HLINE
mvwprintw
win
上傳時間：
2017-06-12
上傳用戶：plsee
-
Abstract-In this paper, simple autonomous chaotic circuits
coupled by resistors are investigated. By carrying out computer
calculations and circuit experiments, irregular self-SWITCHING phenomenon
of three spatial patterns characterized by the phase
states of quasi-synchronization of chaos can be observed from
only four simple chaotic circuits. This is the same phenomenon
as chaotic wandering of spatial patterns observed very often from
systems with a large number of degrees of freedom. Namely, one
of spatial-temporal chaos observed from systems of large size can
be also generated in the proposed system consisting of only four
chaotic circuits. A six subcircuits case and a coupled chaotic circuits
networks are also studied, and such systems are confirmed
to produce more complicated spatio-temporal phenomena.
標簽：
investigated
Abstract-In
autonomous
resistors
上傳時間：
2014-06-09
上傳用戶：h886166
-
Your Cisco Networking Academy Course Booklet is designed as a study resource you can easily read, high-
light, and review on the go, wherever the Internet is not available or practical:
■ The text is extracted directly, word-for-word, from the online course so you can highlight important
points and take notes in the “Your Chapter Notes” section.
■ Headings with the exact page correlations provide a quick reference to the online course for your class-
room discussions and exam preparation.
■ An icon system directs you to the online curriculum to take full advantage of the images, labs, Packet
Tracer activities, and dynamic Flash-based activities embedded within the Networking Academy online
course interface.
標簽：
SWITCHING
Wireless
LAN
and
上傳時間：
2020-05-27
上傳用戶：shancjb
-
The insinuation of telecommunications into the daily fabric of our lives has been
arguably the most important and surprising development of the last 25 years. Before
this revolution, telephone service and its place in our lives had been largely stable
for more than a generation. The growth was, so to speak, lateral, as the global reach
of telecommunications extended and more people got telephone service. The
distinction between oversea and domestic calls blurred with the advances in
SWITCHING and transmission, undersea cable, and communication satellites. Traffic
on the network remained overwhelmingly voice, largely in analog format with
facsimile (Fax) beginning to make inroads.
標簽：
Telecommunications
Modeling
Analysis
and
of
上傳時間：
2020-05-31
上傳用戶：shancjb
-
GaN is an already well implanted semiconductor
technology, widely diffused in the LED optoelectronics
industry. For about 10 years, GaN devices have also been
developed for RF wireless applications where they can
replace Silicon transistors in some selected systems. That
incursion in the RF field has open the door to the power
SWITCHING capability in the lower frequency range and
thus to the power electronic applications.
Compared to Silicon, GaN exhibits largely better figures
for most of the key specifications: Electric field, energy
gap, electron mobility and melting point. Intrinsically,
GaN could offer better performance than Silicon in
terms of: breakdown voltage, SWITCHING frequency and
Overall systems efficiency.
標簽：
GaN-on-Si
Displace
and
SiC
Si
上傳時間：
2020-06-07
上傳用戶：shancjb
-
December 2007, San Jose, California: It seems a long time ago.
I walked into a big networking company to head their small
Power over Ethernet (PoE) applications team. Surprisingly,
I hardly knew anything about PoE prior to that day, having been a
SWITCHING-power conversion engineer almost all my life. But it
seemed a great opportunity to widen my horizons. As you can see,
one notable outcome of that seemingly illogical career choice five
years ago is the book you hold in your hands today. I hope this small
body of work goes on to prove worthy of your expectations and also
of all the effort that went into it. Because, behind the scenes, there is a
rather interesting story to relate—about its backdrop, intertwined
with a small slice of modern PoE history, punctuated by a rather res-
tive search for our roots and our true heroes, one that takes us back
almost two centuries
標簽：
Ethernet
Power
Over
上傳時間：
2020-06-07
上傳用戶：shancjb
-
FFeeaattuurreess ? Input voltage range: 2.2 to 6V ? Programmable LED Current ? Drives LEDs Up to 27V ? SWITCHING Frequency：up to 800KHz ? Wide dimming frequency range: 20KHz~ 360 KHz ? Programmable Overvoltage Protection ? Tiny SOP8/PP Package
標簽：
HX3248C
上傳時間：
2021-11-05
上傳用戶：aben
-
Wide 2.2V to 6V Input Voltage Range
? 0.20V FB adjustable LED drive current
? Directly drive 9 Series 1W LED at
VIN>=6V
? Fixed 800KHz SWITCHING Frequency
? Max. 3A SWITCHING Current Capability
? Up to 92% efficiency
? Excellent line and load regulation
? EN PIN TTL shutdown capability
? Internal Optimize Power MOSFET
標簽：
sc3633
上傳時間：
2021-11-05
上傳用戶：d1997wayne
-
2.7V to 5.5V input voltage Range? Efficiency up to 96%
? 24V Boost converter with 12A switch
current Limit? 600KHz fixed SWITCHING Frequency? Integrated soft-start? Thermal Shutdown? Under voltage Lockout? Support external LDO auxiliary power
supply? 8-Pin SOP-PP PackageAPPLICATIONSPortable Audio Amplifier Power SupplyPower BankQC 2.0/Type CWireless ChargerPOS Printer Power SupplySmall Motor Power Supply
標簽：
XR2981
上傳時間：
2021-11-05
上傳用戶：
-
SWITCHING Power SupplyFundamentals for theSystem Designer
標簽：
開關電源
上傳時間：
2021-11-22
上傳用戶：
