The preparedness of a backup power supply is enhanced by receiving data from a source external to the backup power supply. It is determined from the data that there is a threat of power interruption. The charge on the backup power supply is varied based on the threat of power interruption.

A backup power supply system for managing data backup operation of an electronic device, comprising:

a DC/DC converter having a main power input and a power output;

a boost converter having a power input and a power output;

a thermoelectric generator associated with a chip and electrically connected to the power input of the boost converter, wherein the thermoelectric generator is able to heat or cool the chip;

a microcontroller electrically connected to the power outputs of the first and the second power converter, and electrically connected to a set of components able to perform data backup operation of the electronic device,

wherein the microcontroller is configured to determine an electrical energy required to perform data backup operation by the set of components,

wherein the microcontroller is configured to compute from the determined electrical energy a temperature deviation to reach by the thermoelectric generator, wherein the temperature deviation is the difference between the temperature inside the chip and the ambient temperature of the chip,

wherein the microcontroller is configured to command the regulation of the temperature inside the chip by means of the thermoelectric generator to reach the temperature deviation,

wherein the microcontroller is configured to supply electrical energy to the set of components when data backup operation is triggered, the electrical energy being converted from the heat flux of the temperature deviation from the chip.

A power glitch signal detection circuit, a security chip and an electronic apparatus are disclosed. The power glitch signal detection circuit comprises: a latch and a signal output module, wherein a first input of the latch is connected to a power supply voltage, a first output of the latch is connected to a ground voltage, a second input of the latch is connected to a third output of the latch, a third input of the latch is connected to a second output of the latch, and the second output or the third output is connected to the signal output module. The power glitch signal detection circuit could detect a power glitch on the power supply voltage or the ground voltage, and the power glitch signal detection circuit has the advantages of low power consumption, small area, high speed, high sensitivity and strong portability.

Methods, systems, and devices for persistent health monitoring for volatile memory devices are described. A memory device may determine that an operating condition associated with an array of memory cells on the device, such as a temperature, current, voltage, or other metric of health status is outside of a range associated with a risk of device degradation. The memory device may monitor a duration over which the operating condition is outside of the range, and may determine whether the duration satisfies a threshold. In some cases, the memory device may store an indication of when (e.g., each time) the duration satisfied the threshold. The memory device may store the one or more indications in one or more non-volatile storage elements, such as fuses, which may enable the memory device to maintain a persistent indication of a cumulative duration over which the memory device is operated with operating conditions outside of the range.

A method and apparatus with cosmic ray fault protection is included. A method includes obtaining cosmic ray information indicating at least one cosmic ray event, determining a soft error mitigation policy based on the cosmic ray information, accessing the soft error mitigation policy by a device, and based on the soft error mitigation policy, performing, by the device, a mitigation action that mitigates for soft errors related to the cosmic ray event.

Providing deterministic frequency and voltage enhancements for a processor is disclosed. In an embodiment, a microcontroller on a processor identifies a plurality of parameters related to a processor, the plurality of parameters including at least a current supplied to the processor; determines, in dependence upon the plurality of parameters, one or more frequency scaling indexes including determining an effective switching capacitance ratio; identifies, in dependence upon the one or more frequency scaling indexes, a predetermined frequency parameter for the processor; and transitions, based on the frequency parameter, the processor to a target clock frequency. In another embodiment, a microcontroller on a processor decreases, incrementally, a power supply voltage for a processor; determines that a voltage droop parameter exceeds a voltage droop parameter threshold; and increases, incrementally, the power supply voltage in response to determining that the voltage droop parameter exceeds a voltage droop parameter threshold.

An electronic device is provided. The electronic device includes a housing, a battery included within the housing, a connector electrically connected to an external power supply device including an integrated circuit (IC) and exposed to a part of the housing, and a power management unit included within the housing and electrically connected to the connector, wherein the power management unit is configured to communicate with the IC of the external power supply device, and wherein the connector is configured to receive a first current of a first current value during at least a part of the communication and to receive a second current of a second current value greater than the first current value during at least a part in which the communication is not performed.

An example computing system may include computer module bays, a power subsystem to supply power to computer modules installed in the computer module bays, and a system controller. The power subsystem may also implement overcurrent protection (OCP) based on an OCP threshold parameter. The system controller may include dynamic OCP adjustment logic that repeatedly updates the OCP threshold parameter during normal operation of the computing system. The dynamic OCP adjustment logic may update the OCP threshold parameter by determining a power requirement of the computing system based on a current configuration of the computing system, determining a new OCP threshold based on the power requirement, and instructing the power subsystem to change a value of the OCP threshold parameter to a new value based on the new OCP threshold.

Powering random access memory (RAM) modules with non-volatile memory components may include providing, by a power supply, a first output voltage to one or more RAM modules, each RAM module of the one or more RAM modules comprising a volatile memory component and a non-volatile memory component; providing, by the power supply, a second output voltage to one or more system components distinct from the one or more RAM modules; detecting a power event; sending, by the power supply, in response to detecting the power event, a signal to the one or more RAM modules to initiate a save operation, wherein the save operation comprises storing, for each of the one or more RAM modules, data from the volatile memory component to the non-volatile memory component; and ceasing, by the power supply, the second output voltage while maintaining the first output voltage to facilitate the save operation.

An Internet of Things (IoT) system is illustrated, which has a power supply device and an IoT device. The power supply device electrically connected to the IoT device provides power to the IoT device. The IoT device has a memory unit, a control unit and a networking unit. When the power device generates a surge configuration, the control unit executes a surge control command stored in the control unit after receiving the surge configuration. The surge control command drives the control unit selectively executes one of modes according to the surge configuration. The modes comprise a user mode and a reset mode. The present disclosure utilizes the surge configuration to restart and/or reset the IoT device, and thus the IoT device can be reset without installing a reset button.