Abstract: A communication circuit for communications between a controller and a subsystem with a monitored electrical component is described. The communication circuit includes network formation circuitry configured to establish a wireless network between a primary wireless node adapted to be coupled to the controller and a secondary wireless node coupled to the subsystem. The communication circuit also includes data transfer circuitry configured to perform data transfers between the primary wireless node and the secondary wireless node. The communication circuit further includes data integrity circuitry configured to: generate a hash for data received by the communication circuit; and verify the hash before the data transfer circuitry performs a data transfer of the data between the primary wireless node and the secondary wireless node.

Abstract: A communication circuit for communications between a controller and a subsystem with a monitored electrical component is described. The communication circuit includes network formation circuitry configured to establish a wireless network between a primary wireless node adapted to be coupled to the controller and a secondary wireless node coupled to the subsystem. The communication circuit also includes data transfer circuitry configured to perform data transfers between the primary wireless node and the secondary wireless node. The communication circuit further includes data integrity circuitry configured to: generate a hash for data received by the communication circuit; and verify the hash before the data transfer circuitry performs a data transfer of the data between the primary wireless node and the secondary wireless node.

Abstract: A communication circuit for communications between a controller and a subsystem with a monitored electrical component is described. The communication circuit includes network formation circuitry configured to establish a wireless network between a primary wireless node adapted to be coupled to the controller and a secondary wireless node coupled to the subsystem. The communication circuit also includes data transfer circuitry configured to perform data transfers between the primary wireless node and the secondary wireless node. The communication circuit further includes data integrity circuitry configured to: generate a hash for data received by the communication circuit; and verify the hash before the data transfer circuitry performs a data transfer of the data between the primary wireless node and the secondary wireless node.

Abstract: A device includes a current monitor, an electronic switch, an energy harvester, and a load controller. The current monitor monitors current drawn by a load coupled to the device and generate an alert signal in response to the monitored current exceeding a predefined threshold value. The electronic switch decouples a battery from the load in response to the alert signal, the electronic switch being electrically disconnected from a negative terminal of the battery coupled to the device. The energy harvester stores energy from the battery while the load is drawing current from the battery. The load controller receives, from the energy harvester, the stored energy from the energy harvester and generates a voltage to power the current monitor to reset the alert signal while the battery is decoupled from the load.

Abstract: A device includes a current monitor, an electronic switch, an energy harvester, and a load controller. The current monitor monitors current drawn by a load coupled to the device and generate an alert signal in response to the monitored current exceeding a predefined threshold value. The electronic switch decouples a battery from the load in response to the alert signal, the electronic switch being electrically disconnected from a negative terminal of the battery coupled to the device. The energy harvester stores energy from the battery while the load is drawing current from the battery. The load controller receives, from the energy harvester, the stored energy from the energy harvester and generates a voltage to power the current monitor to reset the alert signal while the battery is decoupled from the load.

Abstract: A device includes a current monitor, an electronic switch, an energy harvester, and a load controller. The current monitor monitors current drawn by a load coupled to the device and generate an alert signal in response to the monitored current exceeding a predefined threshold value. The electronic switch decouples a battery from the load in response to the alert signal, the electronic switch being electrically disconnected from a negative terminal of the battery coupled to the device. The energy harvester stores energy from the battery while the load is drawing current from the battery. The load controller receives, from the energy harvester, the stored energy from the energy harvester and generates a voltage to power the current monitor to reset the alert signal while the battery is decoupled from the load.

Abstract: A device includes a current monitor, an electronic switch, an energy harvester, and a load controller. The current monitor monitors current drawn by a load coupled to the device and generate an alert signal in response to the monitored current exceeding a predefined threshold value. The electronic switch decouples a battery from the load in response to the alert signal, the electronic switch being electrically disconnected from a negative terminal of the battery coupled to the device. The energy harvester stores energy from the battery while the load is drawing current from the battery. The load controller receives, from the energy harvester, the stored energy from the energy harvester and generates a voltage to power the current monitor to reset the alert signal while the battery is decoupled from the load.

Abstract: A system is provided which includes a signal generator for generating a periodic excitation signal and an analog to digital converter, wherein the system is configured to apply the periodic excitation signal to a network including a known first impedance and a second impedance and to take a first set of M digital samples of a first signal relating to the first impedance and a second set of M digital samples of a second signal relating to the second impedance with a sampling frequency that is an integer multiple of the frequency of the periodic signal. The system is further configured to determine the impedance value of the second impedance by calculating a relative phase difference between the first signal and the second signal using the first set of digital samples and the second set of digital samples.

Abstract: A system is provided which comprises a signal generator for generating a periodic excitation signal and an analog to digital converter, wherein the system is configured to apply the periodic excitation signal to a network comprising a known first impedance and a second impedance and to take a first set of M digital samples of a first signal relating to the first impedance and a second set of M digital samples of a second signal relating to the second impedance with a sampling frequency that is an integer multiple of the frequency of the periodic signal. The system is further configured to determine the impedance value of the second impedance by calculating a relative phase difference between the first signal and the second signal using the first set of digital samples and the second set of digital samples.