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US 2016/0105097 A1Published application
Electric actuator system
AssigneeLinak A/S
InventorHenning KRISTENSEN
Life of this patent
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Abstract
An actuator system having at least one electrical linear actuator, wherein the actuator system comprises a controller and a power supply, wherein the noise reduction of common-mode noise in the input stage to the switch-mode converter is undertaken on the rectified and smoothed supply voltage.
Claims10
A power supply for an actuator system comprising:
- a rectifier circuit for rectifying an alternating voltage to a direct voltage,
- a capacitor applied across the output voltages from the rectifier circuit for smoothing of the voltage,
- a common-mode filter for reducing common-mode noise, and
- a switch-mode converter for regulating a direct voltage,
- characterised in that the common-mode filter is inserted into the power supply downstream of the rectifier circuit and the capacitor, and upstream of the switch-mode converter.
2 more elements
A method for constructing a power supply for an actuator system, wherein the circuit is successively constructed from:
- a first block for connection to the mains, with a capacitor for noise reduction,
- a second block with a rectifier circuit,
- a third block consisting of a capacitor for noise reduction and direct-voltage ripple reduction, followed by
- a fourth block with the common-mode filter, and
- a fifth block having a switch-mode converter for regulating a direct voltage.
2 more elements
A power supply for an actuator system comprising:
- a rectifying circuit for rectifying and voltage-doubling of an alternating voltage to a direct voltage,
- a capacitor applied across the output voltage from the rectifier circuit for smoothing the voltage,
- a common-mode filter for reducing common-mode noise, and
- a switch-mode converter for regulating a direct voltage,
- characterized in that
- the common-mode filter is inserted into the power supply downstream of the rectifier circuit and capacitor, and upstream of the switch-mode converter.
3 more elements
Dependencies are inferred from the claim text.