US 2021/0105429 A1Published application

Method and system for generating a ramping signal

AssigneeCista System Corp.

InventorsDennis Tunglin LEE, Guangbin ZHANG

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Abstract

A system is provided for generating a ramping signal. The system includes a plurality of storage circuits each including an input and an output. The output of a previous storage circuit is connected to the input of a next storage circuit. The storage circuits are configured to propagate a first enable signal based on a first control signal. The system also includes a plurality of first current generating circuits. Each first current generating circuit is coupled to the output of a corresponding storage circuit to receive the propagated first enable signal. The first current generating circuits are configured to generate a first current signal based on the propagated first enable signal.

Claims20

Dependent claims

A system for generating a ramping signal, comprising:

a plurality of storage circuits each including an input and an output, the output of a previous storage circuit being connected to the input of a next storage circuit, the storage circuits being configured to propagate a ramp enable signal, each of the storage circuits being configured to output a respective first enable signal;
a plurality of first current generating circuits, each configured to generate a respective first current based on a respective first enable signal and a respective first bias signal;
a plurality of second current generating circuits, each configured to generate a respective second current based on a respective second enable signal and a respective second bias signal, wherein the respective first and second bias signals are the same, and wherein the respective first and second enable signals are the same;
and
an offset circuit configured to generate an offset current based on the second currents;
wherein the ramping signal is generated based on the first currents and the offset current.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/127,128Filed 18 Dec 2020
Priority: 12 Dec 2013
Published: 8 Apr 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H03K 4/02
Generating pulses having essentially a finite slope or stepped portions: having stepped portions, e.g. staircase waveform
H03K 4/08
Having triangular shape: having sawtooth shape
H03K 4/12
Using as active elements vacuum tubes only: in which a sawtooth voltage is produced across a capacitor
H03K 4/26
Using as active elements vacuum tubes only: in which a sawtooth current is produced through an inductor

Family

Application61/915,444Us provisional application · filed 12 Dec 2013
Application14/560,371Continuation · filed 4 Dec 2014
Application15/410,498Continuation · filed 19 Jan 2017
Application15/865,326Continuation · filed 9 Jan 2018
Application16/527,661Continuation · filed 31 Jul 2019
Application17/127,128Continuation
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US 2021/0105429 A1This patent

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

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