Concept for buffered flipped voltage follower and for low dropout voltage regulator
A low-dropout voltage regulator and reverse voltage technology, which is applied to amplifiers with impedance circuits, amplifiers with semiconductor devices/discharge tubes, instruments, etc., can solve the problems of conflicting performance gains and analog characteristics depending on power supply voltage, etc.
Pending Publication Date: 2021-09-21
迈凌亚洲新加坡私人有限公司
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Problems solved by technology
As a result, many important analog characteristics become heavily dependent on the supply voltage and its (dynamic) variation, contradicting performance gains
Method used
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[0034] Various examples will now be described more fully with reference to the accompanying drawings in which some examples are shown. In the drawings, the thickness of lines, layers and / or regions may be exaggerated for clarity.
[0035] Therefore, while further examples are capable of various modifications and substitutions, some specific examples thereof are shown in the drawings and will be described in detail later. However, this detailed description does not limit further examples to the specific forms described. Further examples may cover all modifications, equivalents, and alternatives falling within the scope of the disclosure. Throughout the description of the drawings, the same or similar numerals refer to similar or similar elements, and when compared with each other, they may be implemented in the same or in a modified form while providing the same or similar functions.
[0036] It will be understood that when an element is referred to as being "connected" or "c...
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Examples relate to a buffered flipped voltage follower circuit arrangement, low dropout voltage regulators, a capacitive digital-to-analog converter, a transceiver for wireless communication, a mobile communication device, a base station transceiver, and to a method for forming a buffered flipped voltage follower circuit arrangement. The buffered flipped voltage follower circuit arrangement comprises a first transistor (MP) comprising a first terminal, a second terminal and a gate terminal. The buffered flipped voltage follower circuit arrangement comprises a second transistor (Mc) comprising a first terminal, a second terminal and a gate terminal. The buffered flipped voltage follower circuit arrangement comprises a buffer circuit comprising an input terminal and an output terminal. The buffered flipped voltage follower circuit arrangement a feed-forward compensation circuit (-gmf) comprising an input terminal and an output terminal. The first terminal of the first transistor (MP) is coupled to a supply voltage of the flipped voltage follower circuit. The second terminal of the first transistor (MP) is coupled with the first terminal of the second transistor (Mc) and with an output voltage terminal of the buffered flipped voltage follower circuit arrangement. The second terminal of the second transistor (Mc) is coupled with the input terminal of the buffer circuit and with the output terminal of the feed-forward compensation circuit (-gmf). The gate terminal of the first transistor (MP) is coupled with the output terminal of the buffer circuit and with the input terminal of the feed-forward compensation circuit (-gmf).
Description
technical field [0001] Examples relate to buffered flipping voltage follower circuit arrangements, low dropout voltage regulators, capacitive digital-to-analog converters, transceivers for wireless communications, mobile communication devices, base station transceivers, and for forming buffered flipping voltage follower circuit arrangements method. Background technique [0002] The shift from previously purely analog circuit blocks to all-digital or digital-like circuit structures offers many advantages, such as reduced supply voltage, low silicon area, maximum advantage of technology scaling, and reduced power consumption, to name a few. In many such digital-like circuit implementations, as opposed to digital circuits, the analog behavior of digital circuit structures (i.e. delays, rise / fall times, etc.) is important. Compared to pure analog implementations, digital-like architectures typically suffer from severely reduced (or even disappearing) power supply rejection comp...
Claims
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Login to View More IPC IPC(8): H03F3/50H03F3/45
CPCG05F1/618G05F1/575H03F3/45183H03F3/505H03F3/45636
Inventor D·格鲁伯M·卡尔彻
Owner 迈凌亚洲新加坡私人有限公司