US 11,539,203 B2 · Systems and methods for input overcurrent protection

Abstract

A system and method of protecting the input components of a power supply. An input overcurrent protection module is provided, which may be implemented in firmware, which monitors the input current through an input interface of the power supply. When the input current exceeds a threshold current (i.e., a current above the maximum rating of an input component, such as an input cable), the input current protection module determines whether an input overcurrent event is occurring. When it is determined that an input overcurrent event has occurred, the input current protection module disables the output circuitry of the power supply and triggers a few timers. The input overcurrent protection module continues to monitor the input and, if the input current continues to exceed the threshold current, is configured to shut down the power supply. In this way, input components may be protected from overcurrent issues in high-power systems.

Claims20

Dependent claims

A method, comprising:

detecting, by an input current protection module, an input current through an input interface of a power supply exceeding a threshold current;
in response to detecting the input current exceeding the threshold current, triggering, by the input current protection module, an overcurrent event detection timer;
in response to an input overcurrent event being detected, sending, by the input current protection module, a disable signal to an output circuitry, trigger a reenable delay, and trigger a reoccurrence timer;
in response to the input current not exceeding the threshold current before the reenable delay expires, sending, by the input current protection module, a reenable signal to the output circuitry;
and
in response to a second input overcurrent event occurring before the reoccurrence timer expires, latching, by the input current protection module, the power supply.

3 more elements

Dependencies are inferred from the claim text.

Systems and methods for input overcurrent protection

Life of this patent

Systems and methods for input overcurrent protection

Life of this patent

Abstract

Claims20