Patents by Inventor Mark Chester
Mark Chester has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11744026Abstract: An electrical enclosure including a housing having a plurality of side walls and a base, a housing cover positioned over, and secured to, the housing, a circuit board positioned between the housing and the housing cover, a plurality of connectors extending through the housing cover and the circuit board and into the housing, the plurality of connectors securing the housing cover and the circuit board to the housing, a first protrusion extending inwardly from a first side wall of the housing, and a second protrusion extending inwardly from a second side wall of the housing.Type: GrantFiled: August 3, 2022Date of Patent: August 29, 2023Assignee: Appleton Grp LLCInventors: Darwin A. Villanueva, Valerie B. Comia, Mark Chester B. Nepomuceno, Joel Jeremiah G. Atienza, Klaus Weinmann
-
Patent number: 11736103Abstract: A system is described. The system includes a control transistor, a voltage source, a feedback node connected between a drain of the control transistor and the voltage source, a plurality of resistors connected between the voltage source and ground, and a control node connected to a gate of the control transistor. The resistors include a first series-connected set of resistors associated with the control transistor being biased and a second series-connected set of resistors associated with the control transistor being unbiased. During a startup period, the control node is configured to bias the control transistor to select the first series-connected set of resistors, thereby increasing a voltage level of the voltage source to a boosted VCC voltage. After the startup period, the control node is configured to unbias the control transistor to select the second series-connected set of resistors, thereby decreasing the boosted VCC voltage to a normal VCC voltage.Type: GrantFiled: June 16, 2021Date of Patent: August 22, 2023Assignee: Appleton Grp LLCInventors: Joel Jeremiah Guevarra Atienza, Mark Chester Bernardino Nepomuceno, Jonathan Art Fulgencio Recaflanca, Runelle Namoro Tria
-
Publication number: 20220407509Abstract: A system is described. The system includes a control transistor, a voltage source, a feedback node connected between a drain of the control transistor and the voltage source, a plurality of resistors connected between the voltage source and ground, and a control node connected to a gate of the control transistor. The resistors include a first series-connected set of resistors associated with the control transistor being biased and a second series-connected set of resistors associated with the control transistor being unbiased. During a startup period, the control node is configured to bias the control transistor to select the first series-connected set of resistors, thereby increasing a voltage level of the voltage source to a boosted VCC voltage. After the startup period, the control node is configured to unbias the control transistor to select the second series-connected set of resistors, thereby decreasing the boosted VCC voltage to a normal VCC voltage.Type: ApplicationFiled: June 16, 2021Publication date: December 22, 2022Inventors: Joel Jeremiah Guevarra Atienza, Mark Chester Bernardino Nepomuceno, Jonathan Art Fulgencio Recaflanca, Runelle Namoro Tria
-
Patent number: 11522356Abstract: A power supply comprises voltage regulation circuitry, a load-share controller, and overcurrent protection circuitry. The voltage regulation circuitry is configured to output a regulated voltage. The load-share controller is configured to control the voltage regulation circuitry to adjust the regulated voltage responsive to a load-share voltage signal (LSV) that indicates an amount of load current being delivered to a load. The overcurrent protection circuitry is configured to selectively couple the regulated voltage to the load. When the load current exceeds a threshold current, the overcurrent protection circuitry is configured to decouple the regulated voltage from the load. While the regulated voltage is decoupled from the load, and when the LSV signal indicates that load current is being delivered to the load by a different power supply, the overcurrent protection circuitry is configured to recouple the regulated voltage to the load.Type: GrantFiled: October 26, 2021Date of Patent: December 6, 2022Assignee: Appleton Grp LLCInventors: Joel Jeremiah Guevarra Atienza, John Rommel Baduel De Robles, Mark Chester Bernardino Nepomuceno
-
Patent number: 10236783Abstract: A control circuit that is applicable to power supply systems that use synchronous rectification techniques is described. The control circuit provides a self-driven method of control to an active switch by sensing the current flow over the switch. The control circuit includes a diode, a MOSFET, and a BJT. The control circuit may include a first resistor and a second resistor that are both connected to a voltage source. An anode side of the diode is connected to the first resistor while a cathode side of the diode is connected to a drain of the MOSFET. The second resistor is connected to a collector of the BJT as well as a gate of the MOSFET. A base of the BJT is connected to the first resistor and the anode side of the diode. An emitter of the BJT is coupled to a source of the MOSFET.Type: GrantFiled: January 17, 2018Date of Patent: March 19, 2019Assignee: Appleton Grp LLCInventors: Roderick Perez De Castro, Leon Dela Cruz Placido, Jr., Mark Chester Bernardino Nepomuceno
-
Patent number: 8196595Abstract: Systems and processes may provide improved performance for a pneumatic positioner during a safety override. In certain implementations, a system and process may include may include the ability to receive an input control signal, power control circuitry of the pneumatic positioner using the input control signal, and generate a control signal for a signal-to-pressure converter with the control circuitry based at least partially on the input control signal. The system and process may also include the ability to detect an unsafe operating condition for the pneumatic positioner based on an input signal and modify the control signal in response to detecting the unsafe operating condition, to cause the converter to transition to a safe state. The system and process may additionally include the ability to allow the control circuitry to continue being powered by the input control signal while the converter is in the safe state.Type: GrantFiled: January 21, 2010Date of Patent: June 12, 2012Assignee: Dresser, Inc.Inventors: Mark Chester, Peter S. Levesque, Alex Legere
-
Publication number: 20070183901Abstract: Systems and processes may provide improved performance for a pneumatic positioner during a safety override. In certain implementations, a system and process may include may include the ability to receive an input control signal, power control circuitry of the pneumatic positioner using the input control signal, and generate a control signal for a signal-to-pressure converter with the control circuitry based at least partially on the input control signal. The system and process may also include the ability to detect an unsafe operating condition for the pneumatic positioner based on an input signal and modify the control signal in response to detecting the unsafe operating condition, to cause the converter to transition to a safe state. The system and process may additionally include the ability to allow the control circuitry to continue being powered by the input control signal while the converter is in the safe state.Type: ApplicationFiled: February 7, 2006Publication date: August 9, 2007Inventors: Mark Chester, Peter Levesque, Alex Legere
-
Patent number: 6771212Abstract: A method of recalibrating a Global Positioning System (GPS) receiver includes applying a first control signal to an oscillator for generation of an oscillator signal having an initial frequency and determining if an indicator of correct oscillator output frequency is present at the initial frequency. If an indicator of correct oscillator output frequency is not present, then iterative steps are followed until an indicator of correct oscillator output frequency is found. The iterative steps include: applying a new adjusted control signal to the oscillator for generation of a new frequency; determining whether an indicator of correct oscillator frequency is present; and if an indicator of correct oscillator output frequency is present with the oscillator having the new frequency, storing said adjusted control signal. If an indicator of correct oscillator frequency is present with the oscillator output signal having said initial frequency, then storing said initial control signal.Type: GrantFiled: August 19, 2003Date of Patent: August 3, 2004Assignee: General Dynamcis CorporationInventors: David Moon Yee, Clinton Charles Hepner, Jeffrey Dean York, Mark Chester Stange, Howard George Varner, Jr., Dave Richard Wallis
-
Patent number: D1011187Type: GrantFiled: May 7, 2021Date of Patent: January 16, 2024Assignee: TRUSKIN PARTNERS, INC.Inventors: Sean Beckner, Erica Reh, Mark Chester, Doug Squyres