Method, apparatus and system for providing voltage supply for photoionization detector lamp

A technology of photoionization and voltage supply, which is applied in the field of photoionization detector (PID) lamps to provide alternating current (AC) voltage supply, and can solve problems such as insurmountable

Pending Publication Date: 2020-11-24
HONEYWELL INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this regard, existing methods and devices fail to overcome the technical challenges associated with converting low DC power to high AC power for use in photoionization detectors

Method used

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  • Method, apparatus and system for providing voltage supply for photoionization detector lamp
  • Method, apparatus and system for providing voltage supply for photoionization detector lamp
  • Method, apparatus and system for providing voltage supply for photoionization detector lamp

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Embodiment Construction

[0030] Some embodiments of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the disclosure are shown. Indeed, these disclosures may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like numbers refer to like elements throughout.

[0031] The phrases "in one embodiment," "according to one embodiment," etc. generally mean that the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure, and can be included In more than one embodiment of the disclosure (importantly, such phrases do not necessarily refer to the same embodiment).

[0032] The word "exemplary" or "exemplary" is used herein to mean "serving as an example, instance...

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Abstract

Methods, apparatus, and systems are provided for providing an alternating current (AC) voltage supply to a photoionization detector lamp from a direct current (DC) voltage source. An example apparatusmay include: a DC voltage-DC voltage (DC / DC) converter circuit; and a feedback circuit electronically coupled to the DC / DC converter circuit and converting a reference AC voltage to a feedback DC voltage for use in the DC / DC converter circuit. In some examples, the feedback circuit may be electronically coupled to a DC voltage-AC voltage (DC / AC) conversion circuit to obtain a reference AC voltage.

Description

technical field [0001] The present disclosure generally relates to methods, devices and systems for providing a voltage supply, and more particularly to methods, devices and systems for providing an alternating current (AC) voltage supply for a photoionization detector (PID) lamp. Background technique [0002] A gas detector is a device that can detect and / or measure the concentration levels of compounds in gaseous substances, including, for example, organic and inorganic compounds. For example, a photoionization detector (PID) is a gas detector that can measure the concentration level of volatile organic compounds in gaseous substances. The term "volatile organic compound" (or "VOC") refers to organic compounds that can have a high vapor pressure at ordinary room temperature (ie, they can readily become a gas or vapor). Exemplary chemicals among exemplary volatile organic compounds may include, for example, formaldehyde, methane, and benzene. [0003] High level concentra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62H02M7/48
CPCG01N27/62H02M7/48H02M3/00G01N33/0047H02M7/537H02M1/007H01J61/16H01J65/046G01N27/64G05F1/44G05F1/575H02M1/0003H01J61/56G01N2201/12H02M7/44
Inventor 黄闯张腾飞陈冰梁枫
Owner HONEYWELL INT INC
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