摘要:
An embodiment of the invention relates to a controller that includes a delta-sigma modulator to produce a one-bit, oversampled signal representing a measured characteristic of a process, and a delta-sigma modulator to produce a one-bit, oversampled signal representing a set-point value for the characteristic. A multiplexer selects a partial sum based on a difference of the oversampled signals to produce a control signal for the process. The controller that produces the control signal for the process can be a PID controller.
摘要:
An embodiment of the invention relates to a controller that includes a delta-sigma modulator to produce a one-bit, oversampled signal representing a measured characteristic of a process, and a delta-sigma modulator to produce a one-bit, oversampled signal representing a set-point value for the characteristic. A multiplexer selects a partial sum based on a difference of the oversampled signals to produce a control signal for the process. The controller that produces the control signal for the process can be a PID controller.
摘要:
Current regulators and related method for regulating a current through a load. The current regulator may include, for example, a first circuit configured to determine an amount of current that flows through the load; and a second circuit configured to cause a voltage to be applied across the load, the voltage having a duty cycle that depends on the amount of the current flowing through the load.
摘要:
Current regulators and related methods for regulating a current through a load. The current regulator may include, for example, a first circuit configured to determine an amount of current that flows through the load; and a second circuit configured to cause a voltage to be applied across the load, the voltage having a duty cycle that depends on the amount of the current flowing through the load.
摘要:
A system and method can be used for scaling an output of a modulator of a sigma-delta analog to digital converter and systems and a method can be used for compensating temperature-dependent variations of a reference voltage in a sigma-delta analog to digital converter. In accordance with one embodiment, a system can be used for scaling an output of a modulator of a sigma-delta analog digital converter (ADC). A decimation filter has a decimation length that is adjustable by a decimation length value received as an input to the decimation filter. The decimation filter is configured to receive the output of the modulator of the sigma-delta ADC and to decimate the received output of the modulator of the sigma-delta ADC using the received decimation length value.
摘要:
The invention relates to an electrical or electronic system, and more specifically, to a system with a bus, and a method to transmit data, in particular error data over a bus system. According to an embodiment, a method to transmit error data over a bus system that connects a plurality of modules/components/elements of an electronic system in a chain-like structure comprises in a first phase, transmitting information regarding what kinds of errors have occurred in the system, and in a second phase, transmitting information regarding where in the system an error has occurred.
摘要:
A system includes a bus system to connect a number of components in a chain-like structure. A first control device (e.g., microcontroller or microprocessor) is configured to control the components in a first mode of the system. A second control device (e.g., microcontroller or microprocessor) is configured to control a first subset of the components in a second mode of the system.
摘要:
A system and method can be used for scaling an output of a modulator of a sigma-delta analog to digital converter and systems and a method can be used for compensating temperature-dependent variations of a reference voltage in a sigma-delta analog to digital converter. In accordance with one embodiment, a system can be used for scaling an output of a modulator of a sigma-delta analog digital converter (ADC). A decimation filter has a decimation length that is adjustable by a decimation length value received as an input to the decimation filter. The decimation filter is configured to receive the output of the modulator of the sigma-delta ADC and to decimate the received output of the modulator of the sigma-delta ADC using the received decimation length value.