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power regulation circuit

A power regulation and circuit technology, applied in circuit devices, emergency protection circuit devices, electrical components, etc., can solve problems such as multi-power, resistor or electronic current limiting circuit consumption

Active Publication Date: 2022-03-25
PEPPERL & FUCHS SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes more power to be dissipated in resistors or electronic current limiting circuits and less current to be supplied during normal operation which is not desirable

Method used

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Examples

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Embodiment Construction

[0058] will now refer to figure 2 The first embodiment is described. figure 2 A power conditioning circuit 10 is shown connected to a power supply V1. The power conditioning circuit has a positive power input node PPIN and a negative power input node PNIN connected to the positive and negative terminals of the power supply V1. The power conditioning circuit also has a positive power output node PPON and a negative power output node NPON. The power conditioning circuit 10 receives power from a power source V1 regarded as an ideal voltage source, and regulates the power for output at positive and negative power output nodes PPON and NPON.

[0059] Due to the power regulation performed by the power regulation circuit 10, data symbols can be modulated on the power output, which appears as voltage fluctuations at nodes PPON and NPON. Specifically, referring to the positive side of the power conditioning circuit 10, the circuit includes an inductor L1p and a resistor Rfp connec...

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PUM

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Abstract

The invention relates to a power conditioning circuit (10) comprising a positive power input node and a negative power input node (PPIN, NPIN). An inductor (L1p) comprising a first terminal connected to a positive power input node and a second terminal connected to a positive power output node, said inductor allowing data sent over a communication interface to modulate a voltage at the positive power output node . There is a first node (N1p) between the second terminal of the inductor and the positive power output node, and at the first node the clamp circuit is connected to the second node. The clamping circuit is configured to clamp an increase in voltage across the inductor to less than a maximum increase value, and the voltage at the second node is configured to remain continuously higher than the voltage at the first terminal of the inductor.

Description

technical field [0001] The present invention relates to a power conditioning circuit, eg, for use in a power supply to provide an intrinsically safe output for a circuit located in an explosive atmosphere. Background technique [0002] Circuits used in explosive atmospheres should meet stringent requirements to ensure they are intrinsically safe and will not cause any sparks that could cause a fire or explosion. Various standards such as IEC 60079-11 specify several requirements that circuits used in explosive atmospheres must meet. [0003] To comply with these requirements, in explosive atmospheres, power supplies with power conditioning circuits must be used to limit the supply to non-incendive levels. Power conditioning circuits limit the power that can be supplied from a voltage source of limited voltage by using a current limiting resistor or an electronic current limiting circuit with a current set point. The "burning potential" relationship between the maximum open...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/00H02H9/00
CPCH04B3/00H02H9/021H02J1/10H04B1/04H04B1/1607
Inventor S·格拉贝尔R·卡特彻内尔
Owner PEPPERL & FUCHS SE
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