Supply voltage independent bandgap circuit
US-9218014-B2 · Dec 22, 2015 · US
Bandgap reference circuit with startup circuit and method of operation
US9110486B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9110486-B2 |
| Application number | US-201213605662-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 6, 2012 |
| Priority date | Sep 6, 2012 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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A band gap reference circuit including a band gap reference generator having an output for providing a reference voltage and a startup circuit for controlling current provided to the band gap reference generator when activated. The startup circuit includes a turnoff circuit having an output to deactivate the startup circuit to not control current to the band gap reference generator based on a voltage of the output of the band gap reference generator. The turnoff circuit includes an inverter having a first transistor of a first conductivity type in series with a second transistor of a second conductivity type opposite the first conductivity type. The startup circuit includes a body bias circuit connected to a body of the first transistor to provide a voltage differential between the body of the first transistor and a source terminal of the first transistor.
First claim
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What is claimed is: 1. A band gap reference circuit comprising: a band gap reference generator including an output for providing a reference voltage; a startup circuit for controlling current provided to the band gap reference generator when activated, wherein the startup circuit includes: a turnoff circuit having an output to deactivate the startup circuit to not control current to the band gap reference generator based on a voltage of the output of the band gap reference gene…
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- G05F3/30Primary
Physics · mapped topic
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- What does patent US9110486B2 cover?
- A band gap reference circuit including a band gap reference generator having an output for providing a reference voltage and a startup circuit for controlling current provided to the band gap reference generator when activated. The startup circuit includes a turnoff circuit having an output to deactivate the startup circuit to not control current to the band gap reference generator based on a v…
- Who is the assignee on this patent?
- Siegel Joshua, Mai Khoi B, Freescale Semiconductor Inc
- What technology area does this patent fall under?
- Primary CPC classification G05F3/30. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 18 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).