Voltage reference circuit
US-2016357212-A1 · Dec 8, 2016 · US
Voltage generator and bandgap reference circuit
US8933684B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8933684-B2 |
| Application number | US-201213603406-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 4, 2012 |
| Priority date | Jun 6, 2012 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
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A voltage generator includes a first transistor, a second transistor, an operational amplifier, a capacitor, a third transistor, a fourth transistor and a first resistor. The operational amplifier includes a first terminal coupled to a second terminal of the first transistor, and a second terminal coupled to a second terminal of the second transistor. The capacitor is coupled between an output terminal of the operational amplifier and a ground terminal. The third transistor is coupled to the first transistor and the output terminal of the operational amplifier. The fourth transistor is coupled to the second transistor, the output terminal of the operational amplifier and the ground terminal. The first resistor is utilized for generating a complementary to absolute temperature voltage according to a voltage difference between a gate-source voltage of the third transistor and a gate-source voltage of the fourth transistor.
First claim
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What is claimed is: 1. A voltage generator, comprising: a first transistor, comprising a first terminal coupled to a voltage source, and a second terminal electrically connected to a third terminal; a second transistor, comprising a first terminal coupled to the voltage source, and a second terminal electrically connected to a third terminal; an operational amplifier, comprising a first input terminal coupled to the second terminal and the third terminal of the first transisto…
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Frequently asked questions
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- What does patent US8933684B2 cover?
- A voltage generator includes a first transistor, a second transistor, an operational amplifier, a capacitor, a third transistor, a fourth transistor and a first resistor. The operational amplifier includes a first terminal coupled to a second terminal of the first transistor, and a second terminal coupled to a second terminal of the second transistor. The capacitor is coupled between an output …
- Who is the assignee on this patent?
- Wang Hui, Liu Yin, Xiang Jun, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification G05F3/245. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 13 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).