Inventor

SCHNETZKA HAROLD R

US24 patents

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

SCHNETZKA HAROLD R

YORK INT CORP

Liquid-cooled power semiconductor device heatsink

Methods and apparatuses for detecting surge in centrifugal compressors

Methods and apparatuses for detecting surge in centrifugal compressors

System for precharging a DC link in a variable speed drive

Method and apparatus for detecting a failed thyristor

Solid state, reduced voltage motor starter enabling equalized input/output volt-amp ratings

Switch driver circuit

Solid state motor starter with energy recovery

Highly efficient driver circuit for a solid state switch

Gate drive circuit for an SCR

Anticipatory Schmitt trigger

JOHNSON CONTROLS TECH CO

Common mode &amp; differential mode filter for variable speed drive

Variable speed drive with integral bypass contactor

Variable speed drive

Cooling systems for variable speed drives and inductors

Ride-through method and system for HVAC&amp;R chillers

Variable speed drive

Low voltage variable speed drive for application on medium/high voltage mains

System and method to extend synchronous operation of an active converter in a variable speed drive

BORG WARNER

Trigger circuit for solid state switch

Control system for controlling an SCR network to regulate three-phase A-C power flow

(unassigned)

Method and apparatus detecting a failed thyristor

GEN ELECTRIC

System and method for controlling harmonics in a renewable energy power system

ADIGA-MANOOR SHREESHA

Optocoupler circuit for gate driver

Common mode & differential mode filter for variable speed drive

Ride-through method and system for HVAC&R chillers