Inventor

KONOPKA JOHN G

US58 patents

⚠️ This page may combine multiple inventors who share the name “KONOPKA JOHN G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KONOPKA JOHN G

MOTOROLA INC

Electronic ballast with inverter protection and relamping circuits

Power-line communication system using pulse transmission on the AC line

Electronic ballast with two-step boost converter and method

In-rush current reduction circuit for boost converters and electronic ballasts

Electronic ballast with lamp current valley-fill power factor correction

Single switch electronic ballast with low in-rush current

Single switch ballast with integrated power factor correction

Lamp circuit limited to a booster in which the power output decreases with increasing frequency

Circuit for driving a gas discharge lamp load

Circuit for driving at least one gas discharge lamp

Power supply and electronic ballast with low-cost inverter bootstrap power source

Flourescent lamp circuit employing a reset transistor coupled to a start-up circuit that in turn controls a control circuit

Ballast circuit for powering gas discharge lamp

Power supply and electronic ballast with high efficiency voltage converter

High efficiency electronic ballast

Power supply and electronic ballast with a novel boost converter control circuit

Single transistor ballast with filament preheating

Single transistor electronic ballast

ZENITH ELECTRONICS CORP

DC fan speed control

Power supply with automatic input voltage doubling

Fluorescent lamp power supply

Power circuit locater

Constant current source and battery charger

Constant current source and battery charger

Automatic voltage doubler switch

Low voltage shutdown circuit

Constant current source and battery charger

Saturable transformer regulator for flyback power supply

Short circuit protection for switch mode power supply

Low cost automatic voltage doubler switch

Power supply start-up circuit with high frequency transformer

Start-up circuit for a switch mode power supply

OSRAM SYLVANIA INC

Ballast with arc protection circuit

Ballast with protection circuit for quickly responding to electrical disturbances

Ballast with fast-responding lamp-out detection circuit

Ballast with efficient filament preheating and lamp fault protection

Ballasts with tapped inductor arrangements for igniting and powering high intensity discharge lamps

Ballast with starting circuit for high-intensity discharge lamps

Dimming control system for electronic ballasts

Arrangement for protecting low-voltage control circuitry from externally applied high voltages, and dimming ballast employing such an arrangement

Method and circuit for controlling current in a high pressure discharge lamp

Ballast with protection circuit for preventing inverter startup during an output ground-fault condition

Two light level ballast

Two light level ballast

MOTOROLA LIGHTING INC

Circuit for powering a fluorescent lamp having a transistor common to both inverter and the boost converter and method for operating such a circuit

Ballast circuit for driving gas discharge

Ballast circuit utilizing a boost to heat lamp filaments and to strike the lamps

Apparatus for detecting gas discharge lamp faults

High-power factor circuit for energizing gas discharge lamps

Control circuit