Level shifter having feedback signal from high voltage circuit
US-8988128-B2 · Mar 24, 2015 · US
Capacitive coupling, asynchronous electronic level shifter circuit
US9219481B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9219481-B2 |
| Application number | US-201514615915-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 6, 2015 |
| Priority date | Jan 30, 2012 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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Abstract
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An asynchronous level shifter electronic circuit including: a transmitter, which can be coupled to a first voltage and generates a communication signal; a receiver, which can be coupled to a second voltage; and a capacitive coupling stage, which receives the communication signal and supplies a corresponding filtered signal to the receiver. The receiver includes: a threshold device, which has an input terminal and an output terminal and switches an electrical quantity on the output terminal between a first value and a second value, as a function of corresponding transitions through a threshold of a first intermediate signal present on the input terminal, to generate a second intermediate signal; and a biasing circuit, which generates the first intermediate signal to have a d.c. component, which is a function of the second intermediate signal, and superposed on which is a variable component, which is a function of the filtered signal.
First claim
Opening claim text (preview).
The invention claimed is: 1. A device, comprising: a substrate having a first well and a second well; an asynchronous electronic level shifter circuit that includes: a first transmitter circuit configured to be coupled to a first voltage and to generate a first electrical communication signal, the first transmitter circuit being in the first well; a second transmitter circuit configured to be coupled to a second voltage, that is different from the first voltage, and to genera…
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Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
- H03K19/018507Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9219481B2 cover?
- An asynchronous level shifter electronic circuit including: a transmitter, which can be coupled to a first voltage and generates a communication signal; a receiver, which can be coupled to a second voltage; and a capacitive coupling stage, which receives the communication signal and supplies a corresponding filtered signal to the receiver. The receiver includes: a threshold device, which has an…
- Who is the assignee on this patent?
- St Microelectronics Srl
- What technology area does this patent fall under?
- Primary CPC classification H03K19/018507. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 22 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).