Infineon Technologies Austria Ag

Infineon Technologies Ag

Silicon Laboratories Inc.

Ali Fawaz

Marcus Schaemann

Robert J Pizzuti

Jens Barrenscheen

Martin Krueger

Pavel Konecny

An example relates to a method for operating a converter comprising a primary side of a transformer and a secondary side of the transformer, wherein a switching element is used for conveying energy from the primary side to the secondary side, the method comprising (i) determining a voltage drop across the primary side of the transformer; (ii) determining at least one additional voltage drop across at least one component of the converter's primary side; and (iii) determining an input voltage at the converter via the voltage drops.

Input voltage detection for a power converter including a transformer having a primary side and a secondary side

In accordance with an embodiment, a method of operating a power system includes operating a power converter at a first output power, monitoring a first input voltage at an input port of the power converter. The method further includes upon detecting that the first input voltage drops below a first pre-determined voltage threshold, reducing the first output power of the power converter to a second output power lower than the first output power, and suspending operation of the power converter after the reducing the first output power of the power converter.

System and method for a power conversion system

An example relates to a method for operating a converter comprising (i) determining whether a valley for switching the converter in a quasi-resonant mode is available within a predetermined time range; (ii) selecting the valley if it is available within the predetermined time range; and (iii) changing the mode for operating the converter if the valley is not available within the predetermined time range.

Converter with quasi-resonant mode of operation for supplying power to a load

Methods, devices, and circuits are disclosed for regulating a first parameter of one or more LEDs. The methods, devices, and circuits further disclose switching, in response to an indication of a dimmer interface, from regulating the first parameter of the one or more LEDs to regulating a second parameter below a light generation threshold of the one or more LEDs, wherein switching from regulating the first parameter to regulating the second parameter causes the one or more LEDs to enter a non-light generation mode.

Standby power for LED drivers

A power supply including a switching voltage regulator detects a peak power fault if a peak power limit is exceeded during a switching cycle of the voltage regulator. A second fault condition exists if a second power limit, lower than the peak power limit, is exceeded over a second time period, longer than the first time period. The switching voltage regulator is stopped in response to either the first or the second fault condition. Responsive to the second fault condition, the switching voltage regulator may be stopped until AC power is cycled or until a predetermined time period has elapsed.

Growing community of inventors

Dearborn, MI, United States of America

Ali Fawaz