A controller of a robot includes: a voltage detecting portion that detects a power-source voltage input from a power source; and a determining portion that determines, on the basis of the power-source voltage detected by the voltage detecting portion, whether to perform power-outage processing that guarantees the operation, wherein the determining portion includes a first timer that starts a clock at a point in time when the detected power-source voltage becomes equal to or less than a first threshold voltage that guarantees the operation and makes a determination for performing the power-outage processing in the case in which the power-source voltage does not exceed the first threshold voltage before the time measured by the first timer achieves a prescribed time that is longer than one cycle of the power-source voltage.

The application provides an apparatus, a system, a detector and a method. The apparatus includes: a power supply voltage detector, including: N buffers, an input terminal of a first buffer being connected to a clock signal, output terminals of other buffers being connected to the input terminal of an adjacent buffer; N latch chains, each of which includes M latches, a clock input terminal of each latch being connected to a clock signal, a D terminal of a first latch of each latch chain being connected to the output terminal of a corresponding buffer, Q terminals of other latches being connected to the D terminal of an adjacent latch, M and N being positive integers, the D terminal of each latch being connected to an area where a power supply voltage is to be detected; and a voltage regulation module connected to the Q terminal of each latch.

A voltage detection circuit and method for an integrated circuit, and an integrated circuit are provided. The voltage detection circuit includes: a first current source, a first branch and a second branch. A current outputted by the first current source is allocated to the first branch and the second branch. The first branch includes a first voltage control current component and a first load connected in series. The second branch includes a current signal detection component and a second load connected in series. A voltage signal to be detected is inputted to a control signal input terminal of the first voltage control current component. The current signal detection component is configured to output, in real time, a preset signal characterizing a second current flowing through the second branch, to determine change of the voltage signal to be detected based on the preset signal.

The present disclosure relates to a detection circuit for detecting oscillations of a regulated supply signal. The detection circuit includes a filter circuit to filter the regulated supply signal in order to obtain a filtered supply signal. A peak value detector circuit is designed to detect an extremum of the filtered supply signal. A comparator circuit is designed to compare the detected extreme value with a threshold value and to indicate an understepping or exceedance of the threshold value.

A system-on-a-chip (“SoC”) in a computing device may be provided with a power delivery network (“PDN”) self-test to detect marginal PDN performance. In the self-test, a current surge may be generated on power supply connections of logic circuit blocks. Voltage monitors may measure voltage droop on the power supply connections responsive to the current surge. Voltage droop measurements may be compared with thresholds. An action, such as generation of an alert, may be performed if a voltage droop measurement exceeds a threshold.

The present disclosure provides an abnormal voltage monitoring device, a storage device, and a vehicle. The abnormal voltage monitoring device comprises a voltage divider configure to receive an input voltage from a voltage generator and output a first distribution voltage based on the input voltage, a second bandgap reference generation circuit configured to output a reference voltage, and a monitoring circuit configured to receive the first distribution voltage from the voltage divider and the reference voltage from the second bandgap reference generation circuit, and output an alarm signal responsive to comparing a voltage level of the first distribution voltage with that of the reference voltage. The voltage generator comprises a first bandgap reference generation circuit, and the second bandgap reference generation circuit is configured to generate the reference voltage differently than the first bandgap reference generation circuit.

A terminal apparatus includes: a communication interface that acquires data output from a data output apparatus and supplies power to the data output apparatus; a storage that writes the data to a medium; a controller that controls the storage; a power supply that supplies power to the storage; and a power receiver that receives power from an external power source and supplies power to the communication interface and the power supply. In response to detecting a power outage and/or a voltage drop of the external power source, the controller controls the communication interface to stop supplying power to the data output apparatus.

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.

An integrated circuit including a comparator having a first input to receive a reference voltage, a second input, and an output to provide an under-voltage indicator. Sense points are configured to provide a plurality of sense point voltages, each sense point providing a corresponding sense point voltage of the plurality of sense point voltages; and a minimum voltage tracking circuit configured to receive the plurality of sense point voltages and provide an output voltage which tracks whichever sense point voltage of the plurality of sense point voltages is currently a minimum sense point voltage. The comparator receives the output voltage at the second input and asserts the under-voltage indicator when the output voltage is below the reference voltage.

A system and method for efficiently measuring on-die power supply voltage are described. In various implementations, an integrated circuit includes power supply monitors across a die of the integrated circuit. A power supply monitor receives a power supply voltage and generates a code indicating a value of the power supply voltage. A first ring oscillator receives the power supply voltage and a pulse used as an enable signal. A pulse generator of the power supply monitor takes into account the process, voltage and temperature (PVT) characteristics of the integrated circuit by including at least a second ring oscillator and a modulus counter that receives an output of the second ring oscillator. Therefore, the pulse generated by the pulse generator is PVT dependent and increases gain of the power supply monitor.