Quantcast Plate Resistance (Rp)

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
1-16 You can see from the analysis that the most consistent control of plate current takes place over the linear portion of the Ep - Ip curve. In most applications, electron tubes are operated in this linear portion of the characteristic curve. Plate Resistance (Rp) One tube parameter that can be calculated from values on the Ep - Ip curve is known as plate resistance, abbreviated as Rp. In a properly designed electron tube, there is no physical resistor between cathode and plate; that is, the electrons do not pass through a resistor in arriving at the plate. You may have wondered, however, why the variable dc voltage source of figure 1-12 didn’t blow a fuse. Doesn’t the plate circuit appear to be a short circuit-a circuit without a load to limit the current? The fact is, there is a very real, effective RESISTANCE between cathode and plate. It is not lumped in a resistor, but the circuit may be analyzed as if it is. The plate resistance of a given tube, Rp, can be calculated by applying Ohm’s law to the values of Ep and Ip. Figure 1-14 is a typical diode Ep - Ip curve. The plate resistance has been figured for Rp under three different conditions, as follows: Figure 1-14.—The Ep - I characteristic curve for a diode. Remember that 1 mA = .001 ampere; therefore 40 mA =.040 ampere. Solution: The other two indicated values of Rp were figured in the same way.


Electrical News
DARPA's Chip Office Reboots to Tackle Cost & Complexity
DARPA's Microelectronics Technology Office, the source of much chip innovation...
eetimes.com
Mentor Launches Xpedition PCB Data Management Solution
The new Xpedition data management solution will ensure flow-wide PCB...
eetimes.com
Juggling a Cornucopia of Projects
Max is juggling so many hobby projects that it's no...
eetimes.com
Develop & Share Open-Source Hardware Projects
Matlab and Simulink are finding use in projects that don't...
eetimes.com
Android Open-Source for ARMv8-A Starts 64-Bit Avalanche
Mobile devices will need a big boost in processing power...
eetimes.com
Find an Entrepreneurial Mentor
As Luke had his Yoda, so does a startup CEO...
eetimes.com
Are We Ready to Give Up Driving?
In a Strategy Analytics survey, 40% of Americans said they...
eetimes.com
Broadcom Cuts 2,500 jobs
Broadcom announced plans to cut 2,500 jobs, 20% of its...
eetimes.com
AMS, Dialog Merger Talks Fail
Talks over a possible merger of mixed-signal chip companies AMS...
eetimes.com
The Risks & Rewards of Early Tapeout
Verification remains a key issue in system-on-chip development. The time...
eetimes.com
Nikola Tesla, Vincent Van Gogh & the Second Renaissance
Tesla was alive at the same time as Vincent! Both...
eetimes.com
Future of PCM: Optoelectronic?
Work by a team at the University of Oxford and...
eetimes.com
Mobile Uptick Ahead, Says ARM
Mobile device shipments are rebounding from a slump, but challenges...
eetimes.com
EEVblog #643 – Mailbag
Mailbag Monday Spoilers: Dual voltage source selection circuit Casio FX-7000G...
eevblog.com
Nvidia Raises Android Gaming Ante
The Nvidia Tegra K1 inside the Xaomi MiPad and now...
eetimes.com
Learn Signal Integrity Online
Signal-integrity evangelist Eric Bogatin's classes are now available through an...
eetimes.com
25G Ethernet on Tap at IEEE
In the wake of a June launch for an industry...
eetimes.com
NAND Suit: Toshiba Seeks $1.1B From SK Hynix
South Korea's SK Hynix Inc. disclosed in a regulatory filing...
eetimes.com
Cloud-Based Chip Design Research & Education
Semiconductor Research and Silicon Cloud give chip designers global reach....
eetimes.com
Is Your Processor IP ISO 26262-Compliant?
With the growth in ADAS and the growing demand for...
eetimes.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +