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 About MicaPliers
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Introduction
In many situations, the use of voltage multipliers becomes the only realistic way to produce high voltages. A low current transformer, for example, producing 25 KV directly, has to be physically large to satisfactorily handle the voltage stresses, especially when required to operate at altitude. Using a Micaplier voltage multiplier, the transformer needs only to produce voltages up to 3 KV peak to produce the same results. This by itself makes it possible to reduce both the size and weight dramatically. Further, the high speed diodes used in the micaplier permit a much higher operating frequency to be used than is possible in a direct transformer design, leading to even more space and weight reduction.
Mica vs Ceramic
The chart below rates mica and ceramic as material candidates for voltage multipliers designed for use in
military/aerospace applications. Reynolds Micaplier voltage multipliers have been in production for more than 15 years and much of the production has been for applications subject to hostile environments typical of those shown in the material rating chart.
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Mica |
Ceramic |
| Temperature coefficient to capacitance |
Good |
Poor
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| Voltage coefficient to capacitance |
Good |
Poor |
| Thermal shock |
Good |
Poor |
| Mechanical shock |
Good |
Poor |
| Vibration |
Good |
Poor |
| High current discharge cycle capability |
Good |
Poor |
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Diodes and Testing
Micapliers are manufactured using the highest quality, high speed diodes available. Diode selection and screening can be in accordance with Reynolds internal standards or to customers specifications as an option. Other options are burn-in and most electrical and environmental testing required by the customer.
Applications
Micapliers are used in airborne display systems as CRT anode and focus supplies. Other applications are X-Ray equipment and low power (mini) TWT’s and plasma etching machines. Micapliers should be considered for any application where a high voltage, low current supply is required and where environmental conditions or size and weight are design concerns.
Potting and Optional Terminations
We are experts at potting /encapsulating high voltage components and assemblies. Micapliers are a
fully potted, stand alone high voltage package that have been voltage stress tested and are ready to solder
or connect into a circuit in the same manner as any other component.
A wide selection of termination hardware is available to fit almost any application. This includes solderable pins, Reynolds Advanced series Pee-Wee and JR connectors and CRT anode caps J1-21 or J-22 manufactured by Reynolds Connector Products Division.
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