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Welcome to JMC's Thermal Design News. The purpose
of our newsletter is to update customers about our ongoing projects.
Read ahead to see what's happening at JMC.
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The idle speed of a conventional PWM fan is very low but constant as shown in Figure 1 of the attached drawing. Figure 2 shows the new PWM-Z duty cycle curve that completely turns off the fan at low duty cycles. With the introduction of the PWM-Z, JMC is the first supplier to match 2 types of PWM designs specified in the microelectronics computer industry. Please reply to this newsletter for more information and to set up a meeting with our engineering staff. PWM-Z fans are available from JMC in the following
form factors: |
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New Cooling Solution for Intel® P4 Socket T™ (LGA775 pin
package) JMC is proud to introduce a copper core micro-forged
cooler solution that
To learn more about this new cooler, contact us today. |
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120x38mm Fixed Vane "Digital" Micro Controller Fan JMC launched final testing of the new 120x38mm fixed vane Micro Controller "DIGITAL" fan. Currently the 120x38mm fixed vane DC fan performs at a fixed speed of 4300 RPM's producing 200 CFM at 1.0 Inch of water. The new JMC "Digital" fan is programmable within the fan by micro-code firmware and includes a soft start algorithm that prevents high start-up spike currents without any added circuits and without any added cost. The soft start feature achieves full speed in only 5 seconds and is a vital requirement for high performance air moving devices and chassis with multiple fans. Our future plan roadmap includes adding digital PWM features to this fan size family with continually improved performance. To learn more about this new digital fan design,
contact
us today. |
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Intel® Xeon™ Processor with 800 MHz Front Side Bus: Low Cost
Thermal Solution 
JMC now offers the only all Aluminum thermal solution for the Intel® Xeon™ processor. The JMC Turbo Phoenix 70 uses a very high-speed 6600 RPM fan, meets the stringent requirement of 0.29 C/W, and is priced under $14.95 USD. The Turbo Phoenix 70 is ideal for weight conscious applications, weighing only 389 grams. PWM fan speed control is available upon request. |
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Abe Arredondo, JMC's Engineering Manager, will present
at the upcoming Intel Technology Symposium. The topic presented
will be "Implementing PWM Fan To read more about it, click here. |
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Riddle Me This - Enter to Win
What state in the USA is surrounded by the
most water? Congratulations to our May/June winner Mick Gillitzer
of Kurt Manufacturing who won a JMC polo shirt!
May/June Riddle: What time is it when the number of minutes since
midnight is nine times the number of minutes before noon. Answer:
10:48AM. |
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meets
the Intel® P4 Socket T™ 775 pin package thermal requirements
of 0.29 C/W. This active solution contains a top mounted PWM 92x25mm
fan that spins at 4000 RPM. The top mounted fan is suspended above
the heat sink, and the heat of the cooler is not directly transmitted
to the fan therefore increasing the life of the fan. The fan assembly
mounts to the heat sink assembly using standard screws, eliminating
the need for gluing or clipping the fan onto the heatsink. Engineering
prototypes are available upon request.
CLICK
HERE |
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