4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Signal isolator

Dean M. Umberger

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High sensitivity control circuit for optical solid-state relays

Radiant energy – Photocells; circuits and apparatus – Signal isolator
Patent

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Low operating power, high voltage ringing switch circuit

Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Accelerating switching
Reexamination Certificate

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Overvoltage protector

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Patent

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Profile ID: LFUS-PAI-P-1509722

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