Abstract:
A method and an apparatus for generating PWM signals is provided. Upon detection of a load transient, a new PWM period is started if the load transient occurs during the off-time of a PWM signal and exceeds a specific magnitude.
Abstract:
A method for regulating a buck converter, in which the amount of the output volume is adjusted via a controlled switching, comprising a pulse sequence having a pulse rate and being pulse width modulated, and an inductor, which is switched serially with a load over which an output voltage drops, and an arrangement with a control input and with a control output, between which an analog-to-digital converter, a non-linear amplifier, an IIR filter, and a pulse width modulation circuit is switched, to allow a quick reaction upon a load transient by which the regulation of the output voltage at a buck converter occurs faster and with less overshooting. This is attained such that the sample rate is adjusted to be greater than the pulse rate and the pulse values of the pulse sequence are controlled during the cycle duration.
Abstract:
The invention relates to an electromagnetic valve, the valve coil of which is actuatable by an electric current for removing deposits at the valve seat and the valve closure member in such a manner that the valve closure member impinges upon the valve seat with a defined impulse force.
Abstract:
A method for regulating a buck converter, in which the amount of the output volume is adjusted via a controlled switching, comprising a pulse sequence showing a pulse rate and being pulse width modulated, of a conductivity, which is switched serially and drops over an output voltage, and an arrangement with a control input and with a control output, between which an analog-to-digital converter, a non-linear amplifier, an IIR filter, and a pulse width modulation circuit is switched, allow a quick reaction upon a load transient by which the regulation of the output voltage at a buck converter occurs faster and with less overshooting. This is attained such that the sample rate is adjusted greater than the pulse rate and the pulse values of the pulse sequence are controlled during the cycle duration.
Abstract:
A buck/boost regulator controller is provided. The buck-boost regulator controller controls four switches in an H-bridge configuration to control voltage regulation. The buck/boost regulator controller includes a digital error amplifier and buck-boost control logic. The digital error amplifier provides a multi-bit digital error voltage signal that is based on the difference between the output voltage and the desired output voltage. The buck-boost control logic controls the opening and closing of the four switches in the H-bridge based, in part, on the multi-bit digital error voltage signal.
Abstract:
An area-expandable monument is provided for a cabin of a vehicle that includes, but is not limited to two housing parts that are displaceable relative to each other and can be fastened. A gap between the housing parts in an expanded state can be covered by a covering element. In the monument, a first sanitary fixture could be arranged whose position adapts to the spatial state of the monument. Optionally, there is also a pivotable second sanitary fixture that can be activated with the monument in its pushed-out state.
Abstract:
The present invention relates to a motor-driven unit for an automotive vehicle brake system comprising a housing body for magnetic valves and a cover located on one side, especially for electrical structural elements used to control the magnetic valves. An attachment means is interposed between the cover and the motor housing in such a manner that the latter structural elements can be attached to the housing body with the same contact force. These features permit rendering the sealing effect more uniform in the area of the electronic unit and in the area of the motor housing. In addition, the result of the arrangement of the attachment means is material economy and a reduced assembly effort.
Abstract:
In a Pulse Width Modulation power converter and control method, wherein one of the operating modes steady state or load transient is detected. For either of the two operating modes one set of PID coefficients is provided for the control law that controls the duty ratio command. In case a load transient is detected, the KP gain is selected adaptively. Operating mode detection is supported by oversampling the error signal.
Abstract:
In a Pulse Width Modulation power converter and control method, wherein one of the operating modes steady state or load transient is detected. For either of the two operating modes one set of PID coefficients is provided for the control law that controls the duty ratio command. In case a load transient is detected, the KP gain is selected adaptively. Operating mode detection is supported by oversampling the error signal.
Abstract:
An area-expandable monument is provided for a cabin of a vehicle that includes, but is not limited to two housing parts that are displaceable relative to each other and can be fastened. A gap between the housing parts in an expanded state can be covered by a covering element. In the monument, a first sanitary fixture could be arranged whose position adapts to the spatial state of the monument. Optionally, there is also a pivotable second sanitary fixture that can be activated with the monument in its pushed-out state.