Patent classifications
H03K19/17784
Power Saving with Dual-rail Supply Voltage Scheme
In an embodiment, an integrated circuit includes a clock tree circuit and logic circuitry that is clocked by the clocks received from the clock tree circuit. The logic circuit is powered by a first power supply voltage. The integrated circuit includes a voltage regulator that receives the first power supply voltage and generates a second power supply voltage having a magnitude that is lower than the magnitude of the first power supply voltage by a predetermined amount. The second power supply voltage may track the first power supply voltage over dynamic changes during use, either intentional changes to operating state or noise-induced changes. The second power supply voltage may be used to power at least a portion of the clock tree.
PROGRAMMABLE DRIVE SENSE UNIT
A programmable drive-sense unit (DSU) includes a drive-sense circuit operably coupled to a load, wherein the drive-sense circuit is configured to drive and simultaneously to sense the load via a single line, and produce an analog output based on the sensing the load. The programmable DSU also includes an analog to digital circuit operably coupled to the drive-sense circuit, where the analog to digital circuit is operable to generate a digital output based on the analog output and in accordance with one or more programmable operational parameters to achieve one or more of load sensing objectives associated with the sensing of the load and data processing objectives associated with the sensing of the load.
PROGRAMMABLE DRIVE SENSE UNIT
A programmable drive-sense unit (DSU) includes a drive-sense circuit operably coupled to a load, wherein the drive-sense circuit is configured to drive and simultaneously to sense the load via a single line, and produce an analog output based on the sensing the load. The programmable DSU also includes an analog to digital circuit operably coupled to the drive-sense circuit, where the analog to digital circuit is operable to generate a digital output based on the analog output and in accordance with one or more programmable operational parameters to achieve one or more of load sensing objectives associated with the sensing of the load and data processing objectives associated with the sensing of the load.
SYSTEMS AND METHODS FOR CONFIGURATION OF A CONFIGURATION BIT WITH A VALUE
The present disclosure is drawn to, among other things, a configuration bit including at least four resistive elements and a voltage amplifier. At least two first resistive elements may be electrically connected in series via a first electrode and at least two second resistive elements may be electrically connected in series via a second electrode. The at least two first resistive elements may be electrically connected in parallel to the at least two second resistive elements via a third electrode and a fourth electrode. The first electrode and the second electrode may be electrically connected to a voltage supply. The third electrode and the fourth electrode may be electrically connected to an input of the voltage amplifier.
SYSTEMS AND METHODS FOR CONFIGURATION OF A CONFIGURATION BIT WITH A VALUE
The present disclosure is drawn to, among other things, a configuration bit including at least four resistive elements and a voltage amplifier. At least two first resistive elements may be electrically connected in series via a first electrode and at least two second resistive elements may be electrically connected in series via a second electrode. The at least two first resistive elements may be electrically connected in parallel to the at least two second resistive elements via a third electrode and a fourth electrode. The first electrode and the second electrode may be electrically connected to a voltage supply. The third electrode and the fourth electrode may be electrically connected to an input of the voltage amplifier.
CAN bus transmitter
A CAN bus transmitter has an input to receive a transmit data signal, and CANH and CANL outputs coupled to a CAN bus. The CAN bus transmitter comprises a plurality of CAN driver circuits having inputs coupled through delay circuits with their CANH and CANL outputs in common and connected to the CAN bus. Matching of Cgs capacitances between devices of the CANH and CANL legs provides substantially synchronized changes in the CANH and CANL output logic levels upon a change in the input logic level. Variable delaying of the input logic level changes to each of the plurality of CAN driver circuits reduces emission of unwanted signals from the CAN bus.
CAN bus transmitter
A CAN bus transmitter has an input to receive a transmit data signal, and CANH and CANL outputs coupled to a CAN bus. The CAN bus transmitter comprises a plurality of CAN driver circuits having inputs coupled through delay circuits with their CANH and CANL outputs in common and connected to the CAN bus. Matching of Cgs capacitances between devices of the CANH and CANL legs provides substantially synchronized changes in the CANH and CANL output logic levels upon a change in the input logic level. Variable delaying of the input logic level changes to each of the plurality of CAN driver circuits reduces emission of unwanted signals from the CAN bus.
CAN BUS TRANSMITTER
A CAN bus transmitter has an input to receive a transmit data signal, and CANH and CANL outputs coupled to a CAN bus. The CAN bus transmitter comprises a plurality of CAN driver circuits having inputs coupled through delay circuits with their CANH and CANL outputs in common and connected to the CAN bus. Matching of Cgs capacitances between devices of the CANH and CANL legs provides substantially synchronized changes in the CANH and CANL output logic levels upon a change in the input logic level. Variable delaying of the input logic level changes to each of the plurality of CAN driver circuits reduces emission of unwanted signals from the CAN bus.
CAN BUS TRANSMITTER
A CAN bus transmitter has an input to receive a transmit data signal, and CANH and CANL outputs coupled to a CAN bus. The CAN bus transmitter comprises a plurality of CAN driver circuits having inputs coupled through delay circuits with their CANH and CANL outputs in common and connected to the CAN bus. Matching of Cgs capacitances between devices of the CANH and CANL legs provides substantially synchronized changes in the CANH and CANL output logic levels upon a change in the input logic level. Variable delaying of the input logic level changes to each of the plurality of CAN driver circuits reduces emission of unwanted signals from the CAN bus.
Systems And Methods For Generating A Temperature Dependent Supply Voltage
An integrated circuit includes a diode for generating a temperature dependent voltage, a resistor divider for generating divided voltages by dividing the temperature dependent voltage, and a multiplexer circuit for selecting one of the divided voltages as a reference voltage used for setting a supply voltage.