Vacon Oy

Petri Ylirinne

Stefan Strandberg

Trygve Björkgren

The invention relates to methods for providing a pulse-width modulated power signal in which control signals are used to define phase states and duration. The invention further relates to a corresponding node and to a corresponding system.

Methods for providing a pulse-width modulated power signal, node and system

An electric system for transmitting serial communication messages with different priorities over a communication link. The data to be transmitted is arranged in serial communication messages comprising a start of packet (SOP) symbol and data symbols. The ongoing transmission of a first message is interrupted if a SOP symbol of a second message is sent before the first message has been completed. Transmission of the first message is continued only after the second message has been sent.

Prioritized serial communication

An electric system comprising communication link between a signal transmitting end and a signal receiving end, wherein, at the signal transmitting end, a number of data bits are integrated into a low frequency signal to form an integrated signal. Each data bit is transmitted as part of a symbol. Each symbol comprises a predefined number of bits encoding at least one data bit, the state of some of the bits of each symbol being dependent on the state of the low frequency symbol.

Growing community of inventors

Vaasa, Finland

Petri Ylirinne