US 2026/0261244 A1Published application

Variable gain current mirror

OwnerVanishri HEGDE, Paul DAMITIO +1inventors

InventorsVanishri HEGDE, Paul DAMITIO, Bharath Karthik VASAN

Life of this patent

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Abstract

A circuit includes: a first transistor; a second transistor; a first resistor; a second resistor; and a third resistor. A control terminal of the second transistor is coupled to a control terminal and a first terminal of the first transistor. A first terminal of the first resistor is coupled to a second terminal of the first transistor. A first terminal of the second resistor is coupled to a second terminal of the second transistor. A first terminal of the third resistor is coupled to a second terminal of the first resistor. A second terminal of the third resistor is coupled to a second terminal of the second resistor.

Claims24

Dependent claims

A circuit comprising:

a first transistor having a first terminal, a second terminal, and a control terminal;
a second transistor having a first terminal, a second terminal, and a control terminal, the control terminal of the second transistor coupled to the control terminal and the first terminal of the first transistor;
a first resistor having a first terminal and a second terminal, the first terminal of the first resistor coupled to the second terminal of the first transistor;
a second resistor having a first terminal and a second terminal, the first terminal of the second resistor coupled to the second terminal of the second transistor;
and
a third resistor having a first terminal and a second terminal, the first terminal of the third resistor coupled to the second terminal of the first resistor, and the second terminal of the third resistor coupled to the second terminal of the second resistor.

3 more elements

An amplifier circuit comprising:

an input terminal;
an output terminal;
a current regulator coupled to the input terminal;
and
a variable gain current mirror coupled to the current regulator and to the output terminal.

2 more elements

A circuit comprising:

a gain stage having a first terminal, a second terminal, and a third terminal;
a capacitor having a first terminal and a second terminal, the first terminal of the capacitor coupled to the third terminal of the gain stage;
and
a buffer circuit having a first terminal and a second terminal, the first terminal of the buffer circuit coupled to the third terminal of the gain stage, the buffer circuit including a variable gain current mirror.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 19/223,261Filed 30 May 2025
Priority: 3 Mar 2025
Published: 3 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H03F 3/16
With semiconductor devices only: with field-effect devices
H03F 3/45475
Characterised by the way of implementation of the active amplifying circuit in the differential amplifier: using IC blocks as the active…
H03F 1/301
Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters: in MOSFET amplifiers
H03F 1/342
Negative-feedback-circuit arrangements with or without positive feedback: in field-effect transistor amplifiers

Family

Application63/765,899Us provisional application · filed 3 Mar 2025
US 2026/0261244 A1This patent

From the US filing history. Foreign family members aren’t listed.

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