Transimpedance amplifier
US-9431976-B2 · Aug 30, 2016 · US
System for measuring electrical charge
US9103860B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9103860-B2 |
| Application number | US-201213985594-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 22, 2012 |
| Priority date | Feb 22, 2011 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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A system for measuring electrical charge, comprising a capacitance detector ( 110 ) connected to a charge integrator ( 120 ) being an operational amplifier with a capacitance feedback ( 130 ), in which the input stage ( 121 ) of the charge integrator ( 120 ) comprises a pair of symmetrically connected JFET-type transistors (T1; T2), having gates connected to the input of the charge integrator ( 120 ).
First claim
Opening claim text (preview).
The invention claimed is: 1. A system for measuring electrical charge, comprising: (a) a charge integrator comprising an operational amplifier with capacitance feedback; (b) a capacitance detector directly connected with the input of the charge integrator; and (c) an evaluating system for evaluating an output voltage of the charge integrator, the charge integrator including an input stage, the input stage comprising a pair of symmetrically operatively coupled JFET type transi…
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Classifications
- G01R29/24Primary
Physics · mapped topic
Electricity · mapped topic
- G01R27/2605Primary
Physics · mapped topic
- H03F1/52Primary
Electricity · mapped topic
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- What does patent US9103860B2 cover?
- A system for measuring electrical charge, comprising a capacitance detector ( 110 ) connected to a charge integrator ( 120 ) being an operational amplifier with a capacitance feedback ( 130 ), in which the input stage ( 121 ) of the charge integrator ( 120 ) comprises a pair of symmetrically connected JFET-type transistors (T1; T2), having gates connected to the input of the charge integrator (…
- Who is the assignee on this patent?
- Sosin Zbigniew, Sosin Maciej, Adamczyk Marek, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G01R29/24. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).