Terry A Heckenbach

6639433, Oct 28, 2003

Apr 18, 2002

10/124989

Terry A. Heckenbach - Cedarburg WI

Johnson Controls Technology Company - Plymouth MI

H03K 300

327108, 327436

A configurable analog output circuit comprises a current output circuit, a voltage output circuit, and a switch circuit. The current output circuit is capable of producing a current output signal usable to control a current through an output device. The voltage output circuit is capable of producing a voltage output signal usable to control a voltage across the output device. The switch circuit is capable of switching the analog output circuit between a first mode of operation in which the current output circuit is active and a second mode of operation in which the voltage output circuit is active. The switch circuit switches the analog output circuit between the first and second modes of operation responsive to a detected characteristic of the output device.

7847510, Dec 7, 2010

Feb 29, 2008

12/040172

Terry Heckenbach - Cedarburg WI, US

Johnson Controls Technology Company - Holland MI

H02P 23/00

318799, 318798, 318767, 318727, 318 66

Systems and/or methods that facilitate efficiently controlling speed of an induction motor are presented. An optimized control component controls respective switching of an auxiliary switch component associated with an auxiliary winding of the motor, a main switch component associated with a main winding of the motor, and a capacitance adjuster switch component that facilitates adjusting the amount of capacitance associated with the auxiliary winding. The timing of switching on the auxiliary switch component and main switch component can be controlled such that there can be a time difference between the respective switching on of the auxiliary switch component and main switch component to produce additional phase shift to facilitate improving motor efficiency. The capacitance adjuster switch component can be switched on when motor speed is below a predetermined low speed threshold to facilitate increasing the amount of capacitance associated with the auxiliary winding to improve motor efficiency.

7986540, Jul 26, 2011

Mar 7, 2008

12/044369

Terry Heckenbach - Cedarburg WI, US

Johnson Controls Technology Company - Holland MI

H02M 7/155
G05F 1/70

363128, 363 44, 323210

Systems and/or methods that facilitate controlling a rate of voltage change across an inductively loaded thyristor when switched are presented. Based on a received control signal indicating a thyristor is to be switched, a control component controls the rate of voltage change across a thyristor associated with an inductive load when the thyristor is switched from a first state to another state to facilitate controlling noise emissions during switching based in part on a predefined noise criteria, without using a filter. A capacitor component is connected to the inductive load and thyristor. The control component employs a voltage-controlled current sink comprising a transistor to facilitate discharging voltage from the capacitor component until the capacitor component is discharged to a predefined voltage level, where at or near such point a gate component can send a signal to the thyristor gate to switch the thyristor to the desired state.

20120262101, Oct 18, 2012

Mar 14, 2012

13/420472

George Rudich - Cedarburg WI, US
Timothy J. Riesch - Germantown WI, US
Terry Heckenbach - Cedarburg WI, US

H02P 6/08

31840042

A controller for varying the voltage provided to an electronically commutated motor includes a circuit configured to generate both a pulse voltage direct current output and a continuous direct current output. The circuit is configured to run the electronically commutated motor at an average speed that is below its minimum rated speed using the pulse voltage direct current.