Quantcast Thyratron Modulator

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
2-40 Figure 2-38.—Fixed spark-gap modulator. The spark gap is actually triggered (ionized) by the combined action of the charging voltage across the pulse-forming network and the trigger pulse. (Ionization was discussed in NEETS, Module 6, Introduction to Electronic Emission, Tubes and Power Supplies.) The air between the trigger pulse injection point and ground is ionized by the trigger voltage. This, in turn, initiates the ionization of the complete gap by the charging voltage. This ionization allows conduction from the charged pulse-forming network through pulse transformer T1. The output pulse is then applied to an oscillating device, such as a magnetron. Thyratron Modulator The hydrogen THYRATRON MODULATOR is an electronic switch which requires a positive trigger of only 150 volts. The trigger potential must rise at the rate of 100 volts per microsecond to cause the modulator to conduct. In contrast to spark gap devices, the hydrogen thyratron (figure 2-39) operates over a wide range of anode voltages and pulse-repetition rates. The grid has complete control over the initiation of cathode emission for a wide range of voltages. The anode is completely shielded from the cathode by the grid. Thus, effective grid action results in very smooth firing over a wide range of anode voltages and repetition frequencies. Unlike most other thyratrons, the positive grid-control characteristic ensures stable operation. In addition, deionization time is reduced by using the hydrogen-filled tube. Figure 2-39.—Typical thyratron gas-tube modulator. The hydrogen thyratron modulator provides improved timing because the synchronized trigger pulse is applied to the control grid of the thyratron (V2) and instantaneous firing is obtained. In addition, only


Electrical News
What Apple Stuffed Inside iPhone 6 Plus
The iPhone 6 Plus packs a host of new tech...
eetimes.com
Secure WiFi Shield for Arduino Platforms
The Arduino Wi-Fi Shield 101 is designed to enable rapid...
eetimes.com
Digital Level Shifting
Do you need to take your signals to the next...
eetimes.com
Steve Wozniak Reacts to Latest iPhone
Being presented with his very own iCups communications system certainly...
eetimes.com
Five Challenges to FPGA-Based Prototyping
The state-of-the-art has progressed spectacularly since early forays into FPGA-based...
eetimes.com
Q'comm Does Watches, Glasses, Robots
Qualcomm showed design wins in smartwatches, VR glasses, and robots...
eetimes.com
Making The Internet of Things 'Easy Stupid'
IoT companies need to provide a positive user experience that...
blog.designersofthings.com
Cars Made to Order at Retail
Local Motors' sporty 3D-printed car, looking like licorice on wheels,...
eetimes.com
Friday Quiz: Units of Measurement
The ways we express units of measurement should be perfectly...
eetimes.com
Nvidia's Maxwell Lights Up Voxels
Nvidia's Maxwell, its new high-end graphics processor, opens up a...
eetimes.com
Backlash Coming on Car-to-Car Talk?
Vehicle-to-vehicle communications will be mandated in the US, but public...
eetimes.com
Training Opportunities Abound at ARM TechCon
ARM TechCon is only a few weeks away, and if...
eetimes.com
10 Top Video Parodies on User Interfaces
There have been some interesting videos of "user interface parodies"...
eetimes.com
Making Wearables Personal
Wearables should be as unique as the person who wears...
blog.designersofthings.com
Elastomeric Camouflage Switches Texture & Color
Inspired by nature's most skillful camouflage artists, MIT researchers harness...
eetimes.com
Infographic: A History of Wearable Tech
Take a stroll down wearable memory lane in this great...
blog.designersofthings.com
18 Views of the Silicon Horizon
Semiconductors are poised for high single-digit growth this year and...
eetimes.com
Power Week: Did We Just Avoid an 'Electric Armageddon?'
While a powerful solar storm this past week resulted only...
eetimes.com
Rube Goldberg Rocket Launch
For their first real-world project, a group of budding young...
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 +