US 12,540,958 B2Granted

Monitoring circuit and storage system

AssigneeChangxin Memory Technologies, Inc.

InventorJianyong Qin

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Abstract

The embodiment the disclosure provides a monitoring circuit and a storage system. The monitoring circuit includes a voltage detection module and a logic circuit module. The voltage detection module is configured to output a first detection signal, a second detection signal and a third detection signal through a first node, a second node and a third node, respectively. The logic circuit module is configured to output a monitoring signal through a fourth node; determine whether the first detection signal has a first preset level, whether the second detection signal has a second preset level, and whether the third detection signal has a third preset level, respectively; determine the monitoring signal to be in a valid state in response to the first detection signal having the first preset level, the second detection signal having the second preset level and the third detection signal having the third preset level.

Claims15

Dependent claims

A monitoring circuit, comprising:

a voltage detection module, configured to:
output a first detection signal, a second detection signal and a third detection signal through a first node, a second node and a third node, respectively, wherein the voltage detection module is specifically configured to:
detect whether a first voltage from a first voltage domain is greater than or equal to a first preset value, and output the first detection signal having a first preset level in response to the first voltage being greater than or equal to the first preset value;
detect whether a second voltage from a second voltage domain is greater than or equal to a second preset value, and output the second detection signal having a second preset level in response to the second voltage being greater than or equal to the second preset value;
and detect whether a third voltage from a third voltage domain is greater than or equal to a third preset value, and output the third detection signal having a third preset level in response to the third voltage being greater than or equal to the third preset value;
and
a logic circuit module, connected to the first node, the second node and the third node, and configured to output a monitoring signal through a fourth node, wherein the logic circuit module is specifically configured to:
determine whether the first detection signal has the first preset level, whether the second detection signal has the second preset level, and whether the third detection signal has the third preset level, respectively;
determine the monitoring signal to be in a valid state in response to the first detection signal having the first preset level, the second detection signal having the second preset level and the third detection signal having the third preset level;
and determine the monitoring signal to be in an invalid state in response to at least one of the first detection signal, the second detection signal or the third detection signal not having a respective preset level of the first preset level, the second preset level and the third preset level;
wherein the voltage detection module comprises:
a first output element, configured to directly output the first detection signal to the logic circuit module;
a second output element, configured to directly output the second detection signal to the logic circuit module;
and a third output element, configured to directly output the third detection signal to the logic circuit module, wherein all of the first output element, the second output element and the third output element operate in the second voltage domain,
the logic circuit module comprises a logic operation element directly connected to the first node, the second node and the third node, wherein the logic operation element operates in the second voltage domain, and
the first preset value is greater than the second preset value which is greater than the third preset value.

13 more elements

A monitoring circuit, comprising:

a voltage detection module, configured to:
output a first detection signal, a second detection signal and a third detection signal through a first node, a second node and a third node, respectively, wherein the voltage detection module is specifically configured to:
detect whether a first voltage from a first voltage domain is greater than or equal to a first preset value, and output the first detection signal having a first preset level in response to the first voltage being greater than or equal to the first preset value;
detect whether a second voltage from a second voltage domain is greater than or equal to a second preset value, and output the second detection signal having a second preset level in response to the second voltage being greater than or equal to the second preset value;
and detect whether a third voltage from a third voltage domain is greater than or equal to a third preset value, and output the third detection signal having a third preset level in response to the third voltage being greater than or equal to the third preset value;
and
a logic circuit module, connected to the first node, the second node and the third node, and configured to output a monitoring signal through a fourth node, wherein the logic circuit module is specifically configured to:
determine whether the first detection signal has the first preset level, whether the second detection signal has the second preset level, and whether the third detection signal has the third preset level, respectively;
determine the monitoring signal to be in a valid state in response to the first detection signal having the first preset level, the second detection signal having the second preset level and the third detection signal having the third preset level;
and determine the monitoring signal to be in an invalid state in response to at least one of the first detection signal, the second detection signal or the third detection signal not having a respective preset level of the first preset level, the second preset level and the third preset level;
wherein the voltage detection module comprises:
a first detection unit, having an output end as the first node and configured to detect whether the first voltage is greater than or equal to the first preset value;
a second detection unit, having an output end as the second node and configured to detect whether the second voltage is greater than or equal to the second preset value;
and
a third detection unit, having an output end as the third node and configured to detect whether the third voltage is greater than or equal to the third preset value;
wherein the first detection unit comprises:
a first detection circuit, configured to detect whether the first voltage is greater than or equal to the first preset value, and output the first detection signal having the first preset level through an output end of the first detection circuit in response to the first voltage being greater than or equal to the first preset value;
a first inverter, operating in the first voltage domain, and having an input end connected to the output end of the first detection circuit;
and
a second inverter, operating in the second voltage domain, and having an input end connected to an output end of the first inverter and an output end as the first node.

17 more elements

A monitoring circuit, comprising:

a voltage detection module, configured to:
output a first detection signal, a second detection signal and a third detection signal through a first node, a second node and a third node, respectively, wherein the voltage detection module is specifically configured to:
detect whether a first voltage from a first voltage domain is greater than or equal to a first preset value, and output the first detection signal having a first preset level in response to the first voltage being greater than or equal to the first preset value;
detect whether a second voltage from a second voltage domain is greater than or equal to a second preset value, and output the second detection signal having a second preset level in response to the second voltage being greater than or equal to the second preset value;
and detect whether a third voltage from a third voltage domain is greater than or equal to a third preset value, and output the third detection signal having a third preset level in response to the third voltage being greater than or equal to the third preset value;
and
a logic circuit module, connected to the first node, the second node and the third node, and configured to output a monitoring signal through a fourth node, wherein the logic circuit module is specifically configured to:
determine whether the first detection signal has the first preset level, whether the second detection signal has the second preset level, and whether the third detection signal has the third preset level, respectively;
determine the monitoring signal to be in a valid state in response to the first detection signal having the first preset level, the second detection signal having the second preset level and the third detection signal having the third preset level;
and determine the monitoring signal to be in an invalid state in response to at least one of the first detection signal, the second detection signal or the third detection signal not having a respective preset level of the first preset level, the second preset level and the third preset level;
wherein the voltage detection module comprises:
a first detection unit, having an output end as the first node and configured to detect whether the first voltage is greater than or equal to the first preset value;
a second detection unit, having an output end as the second node and configured to detect whether the second voltage is greater than or equal to the second preset value;
and
a third detection unit, having an output end as the third node and configured to detect whether the third voltage is greater than or equal to the third preset value;
wherein the third detection unit comprises:
a third detection circuit, configured to detect whether the third voltage is greater than or equal to the third preset value, and output the third detection signal having the third preset level through an output end of third detection circuit in response to the third voltage being greater than or equal to the third preset value;
a fifth inverter, operating in the third voltage domain, and having an input end connected to the output end of the third detection circuit;
and
a third output element, operating in the second voltage domain, and having an input end connected to an output end of the fifth inverter and an output end as the third node.

17 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/449,044Filed 14 Aug 2023 · continuation
Priority: CN 202211000055.319 Aug 2022
Published: US 2024/0061026 A122 Feb 2024
Granted: 3 Feb 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

G01R 19/2503
Using digital measurement techniques: for measuring voltage only, e.g. digital volt meters
G01R 19/00
Arrangements for measuring currents or voltages or for indicating presence or sign
G01R 19/0084
Arrangements for measuring currents or voltages or for indicating presence or sign thereof: measuring voltage only
G01R 19/16552
In AC or DC supplies: in I.C. power supplies