US 2021/0203277 A1 · HIGHLY LINEAR TIME AMPLIFIER WITH POWER SUPPLY REJECTION

Abstract

A highly linear time amplifier with power supply rejection. In a reset stage, the threshold value of an over-threshold detector is used for resetting an output node of an amplifier, to eliminate the impact of power supply voltage changes on the threshold value of the threshold detector. A node capacitor unit is charged under the control of an input clock signal. After completion of charging, the node capacitor unit is discharged under the control of a synchronous clock signal. The time amplification gain only depends on the proportion of the charge and discharge current, and the charging and discharging time are completely linear in principle, which eliminates the nonlinearity of the traditional time amplifier, and reduces the negative impact of threshold change on system performance.

Claims10

Dependent claims

A highly linear time amplifier with power supply rejection, comprising

a clock control logic generating unit, receiving the input clock signal and a synchronous clock signal, and generating a control clock signal;
a node capacitor unit, charging and discharging according to the control clock signal;
a switching power supply unit, comprising a plurality of switching constant current source modules, an input terminal of the switching constant current source module is connected with an output terminal of the clock control logic generating unit;
wherein the switching constant current source module charges the node capacitor unit under a control of the input clock signal, after charging is completed, the node capacitor unit discharge under a control of the synchronous clock signal, to achieve time amplification.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/057,698Filed 13 May 2019

Priority

CN 201810500011.423 May 2018

Published

1 Jul 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

H03F 1/0211
In transistor amplifiers: with control of the supply voltage or current
H03F 3/45179
Characterised by the way of implementation of the active amplifying circuit in the differential amplifier: using MOSFET transistors as the active…
H03F 1/3211
Modifications of amplifiers to reduce non-linear distortion: in differential amplifiers
H03F 3/45
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements: differential amplifiers

Highly linear time amplifier with power supply rejection

Life of this patent

Highly linear time amplifier with power supply rejection

Life of this patent

Abstract

Claims10