Abstract: An Automotive Infotainment Power Controller. It utilizes a PIC Micro-Controller, TCP/IP Stack, and a 10 Mbit Ethernet connection as an industry-standard interface by which the Automotive Infotainment Power Controller is connected to any number of Personal Computers. This infrastructure allows custom FW to be developed for the Power Controller that can interact with PC drivers. It also opens the door for bi-directional communication between multiple Personal Computers and the Power Controller. Any number of protocols can be chosen or developed to facilitate this communication over standard Ethernet TCP/IP packets. Having this Ethernet-based communication pipeline between the Power Controller and PCs allows the system to be configured, provide diagnostic/status information, communicate with, and individually Start-Up/Shut-Down PCs connected to the system.

Abstract: A comprehensive power-on-reset (POR) and low voltage detection circuit combines a Power Supply Voltage Level Detection (PSVLD) circuit with an Enhanced Retriggering (ER) circuit. The PSVLD circuit establishes lower and upper thresholds of the desired operating voltage range, and provides initial POR triggering and retriggering when the supply voltage is within the desired range. The ER circuit senses a predetermined amount of drop in the power supply voltage being monitored, and generates an independent pulse at the POR node whenever such a drop occurs. Total DC current is limited to less than 2.5 microamps, while power supply voltages can be monitored over the range of 2.5 to 5.5 volts.A simplified POR and low voltage detection circuit establishes a single threshold and generates an initial POR signal when the supply voltage exceeds this threshold. The low voltage detection circuit causes a retrigger POR signal to be generated if the supply voltage then falls below this threshold.

Abstract: A comprehensive power-on-reset (POR) and low voltage detection circuit combines a Power Supply Voltage Level Detection (PSVLD) circuit with an Enhanced Retriggering (ER) circuit. The PSVLD circuit establishes lower and upper thresholds of the desired operating voltage range, and provide initial POR triggering and retriggering when the supply voltage is within the desired range. The ER circuit senses a predetermined amount of drop in the power supply voltage being monitored, and generates an independent pulse at the POR node whenever such a drop occurs. Total DC current is limited to less than 2.5 microamps, while power supply voltages can be monitored for stability over the range of 2.5 to 5.5 volts.