Analog Devices,inc.

Analog Devices Global

Marcus O'Sullivan

George Redfield Spalding, Jr

Aldo Togneri

Lawrence Howard Edelson

Michael Daly

Subodh Prakash Madiwale

Gopinath Akkinepally

In an example, a device for controlling an electronic switch between a power supply and a load includes a first device pin configured to be in communication with the electronic switch, a sensing circuit configured to be connected to an input voltage and to measure a current to the load, a control circuit configured to be in communication with the sensing circuit and the electronic switch, the control circuit configured to use a current limit signal to control operation of the electronic switch, and a current limit circuit configured to be in communication with the control circuit, the current limit circuit configured to generate the current limit signal representing a current limit and automatically adjust the current limit signal in response to a change in at least one of the input voltage and an output voltage.

Current limit control in hot swap controllers

Using various circuits and methods, current can be controlled when a circuit board is plugged into a powered system using two charging paths so that a first current can be supplied between a supply voltage and the load in a first charging path during a first time period and a second current can be supplied between the supply voltage and the load in a second charging path during a second time period.

Techniques for controlling current during power up in hot swap controllers

In an example, a circuit for controlling at least two electronic switches in a parallel configuration between a power supply and a load. The circuit includes a control circuit to generate first and second control signals to control first and second electronic switches of the at least two electronic switches, and establish a conduction sequence of the first and second electronic switches using the first and second control signals. The circuit includes a detection circuit configured to detect a current flowing through a control terminal of the first electronic switch during a transition portion, wherein the circuit is configured to adjust the first control signal and establish the second portion of the conduction sequence in response to the detected current.

Dynamic exchange of electrical current control devices in a load current controller

A device for controlling an electronic switch between a power supply and a load includes a sensing circuit to measure a current to the load and a control circuit to control operation of the electronic switch if the current exceeds a current limit. The control circuit includes a normal current circuit to output a first switch control current to the electronic switch and a boost current circuit to output a second switch control current to the electronic switch, the first switch control current being higher than the second switch control current.

Hot swap circuit management techniques for power line disturbances and faults

A connection device for connecting a load to a power supply, comprising at least first and second current control devices arranged in parallel between the power supply and the load, and a controller arranged to switch the current control devices on in sequence for temporally overlapping on periods.

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San Jose, CA, United States of America

Marcus O'Sullivan