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US 2006/0049864 A1Published application
Radiation tolerant DC/DC converter with non-radiation hardened parts
OwnerSteven Summerinventor
Life of this patent
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Abstract
A radiation tolerant high-power DC/DC converter is disclosed. The converter does not incorporate radiation-hardened parts, but instead uses p-channel FET switches that have a negative gate threshold voltage. With exposure to radiation, the gate threshold voltage decreases, becoming more negative. Thus, the gate is still controllable.
Claims20
A radiation tolerant electrical component for providing controlled electrical response in radiation-intensive applications, the component comprising:
- a non-hardened p-channel FET supplying input voltage to a non-hardened n-channel FET with a negative bias to provide a controlled electrical output from the n-channel FET.
A radiation tolerant electrical component for providing controlled electrical response in radiation-intensive applications, the component comprising:
- a p-channel FET DC/DC Converter;
- a PMW circuit;
- an enable circuit;
- a DC restorer;
- a p-channel FET switch;
- an upper-n-channel FET;
- a lower-n-channel FET;
- a power transformer;
- an upper-catch diode;
- a lower-catch diode;
- a rectifier;
- a filter;
- and,
- a feedback isolator;
- wherein:
- the p-channel FET DC/DC converter is operably connected to a voltage source;
- the PMW circuit is operably connected to the p-channel FET DC/DC converter;
- the enable circuit is operably connected to the p-channel FET DC/DC converter;
- the DC restorer is operably connected to the PMW circuit;
- the p-channel FET switch is operably connected to the voltage source;
- the upper-n-channel FET is operably connected to the p-channel FET switch;
- lower-n-channel FET is operably connected to the PMW circuit;
- the power transformer is operably connected to the upper and lower-n-channel switching FET;
- the upper and lower-catch diodes are operably connected to the power transformer;
- the rectifier is operably connected to the power transformer;
- the filter is operably connected to the rectifier;
- the feedback isolator is operably connected to the filter and PWM circuit.
24 more elements
Dependencies are inferred from the claim text.