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Power supply unit with adaptive feedback control loops

A technology of power supply unit and feedback control, which is applied in the field of power analyzers, can solve problems such as overshoot/oscillation, and achieve the effect of avoiding instantaneous overshoot or voltage instantaneous oscillation or current instantaneous oscillation

Pending Publication Date: 2021-06-08
ROHDE & SCHWARZ GMBH & CO KG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Momentary overshoots / oscillations may occur due to necessary regulation processes, such as when the load or DUT connected to the power supply unit changes or when the load or DUT is connected to the power supply unit

Method used

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  • Power supply unit with adaptive feedback control loops
  • Power supply unit with adaptive feedback control loops
  • Power supply unit with adaptive feedback control loops

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Embodiment Construction

[0031] As already described above, a power supply unit such as used in or for a power analyzer may have at least two feedback control loops, such as a voltage control loop and a current control loop. In cases where one of the two control loops is used preferentially, it can happen that transient overshoots or transient oscillations occur in the variables of the other control loop. Such transient overshoots or transient oscillations such as in image 3 and Figure 4 shown in , where, image 3 shows a transient overshoot of voltage 13, while the Figure 4 A momentary overshoot of current 14 is shown in . In both cases, it may even happen that parts of the power supply unit or the load / DUT connected to the power supply unit are damaged.

[0032]In the present invention, both control loops are now monitored and it is then determined which control loop should be activated or prioritized in order to avoid or at least reduce transient overshoots or transient oscillations. Therefor...

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Abstract

The invention relates to a power supply unit with adaptive feedback control loops . A power supply unit, preferably for a power analyzer, a power analyzer comprising a power supply unit and a method for operating a power supply unit are disclosed. The power supply unit comprises a feedback control unit arranged for selectively controlling the output level of the voltage or the output level of the current to output terminals of the power supply unit on a preset value, and means for sensing the actual output level of the voltage and current, respectively, and sending a signal representing the sensed output level to said feedback control unit, wherein the feedback control unit is arranged to autonomously prioritize or activate at least a first control loop for the controlling of the output level of the current or a second control loop for the controlling of the output level of the voltage, based on data generated within the power supply unit and / or externally generated data supplied to the power supply unit.

Description

technical field [0001] The invention relates to a power supply unit, preferably for a power analyzer, a method for operating a power supply unit and a power analyzer comprising a power supply unit, wherein the power supply unit comprises a feedback control unit, the feedback control unit for selectively controlling the output level of the voltage or the output level of the current to the output terminal of the power supply unit at a preset value; and for sensing the actual output level of the voltage and the actual output level of the current respectively and indicating the sense A signal of the measured output level is sent to components of the feedback control unit. Background technique [0002] A power supply or power supply unit is a device or component used to supply power to equipment or components, such as electrical or electronic loads, which require a different voltage and or the voltage and current provided by a source such as a battery. Some power supply units a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00
CPCH02M1/00H02M3/157G01R31/2839H02M1/0012G01R21/06G05F1/462
Inventor 菲利普·威戈尔安德里亚斯·舒茨于尔根·瓦尔德施密特萨沙·库尼施
Owner ROHDE & SCHWARZ GMBH & CO KG
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