Patent application number | Description | Published |
20080197826 | SWITCHING POWER SUPPLY CONTROLLER WITH TRANSIENT GAIN CHANGE - A switching power supply controller has a nominal loop gain and transient loop gain that is only activated in response to an abrupt load change in one direction. The transient loop gain may be implemented with a series-connected diode and resistor combination arranged in a feedback configuration with an error amplifier. A large load change in one direction may swing the output of the error amplifier and forward bias the diode to create a non-linear gain change. | 08-21-2008 |
20080224678 | SWITCHING POWER SUPPLY CONTROLLER WITH HIGH FREQUENCY CURRENT BALANCE - A controller for a multi-phase switching power supply shuffles the sequence of the phases in response to a load transient to prevent synchronization of one or more phases with high-frequency load transients. The sequence may be shuffled by varying the frequency and/or sequence of the switching control signals to introduce a random variation in the phases. | 09-18-2008 |
20080246458 | DIGITAL COMPENSATION TUNING FOR SWITCHING POWER SUPPLY CONTROL - A tuner having one or more digitally controllable tuning components may be coupled to an analog feedback compensation network in a target switching power supply controller to adjust the compensation while the power supply is operating. A communication interface couples the tuner to a host having a software interface to enable a user to adjust the values of the tuning components. The tuner may include components to adjust the values of a feedback network, an input network, a ramp adjust component, etc., on the target controller. | 10-09-2008 |
20090153120 | Phase doubling for switching power supply - A switching power supply control system may include logic to generate a greater number of second switching control signals in response to a first number of original switching control signals. For example, the logic may increase the number of phases that may be controlled by an existing switching power supply controller. The logic may be configured to steer feedback signals from the increased number of phases back to original feedback inputs on the controller. | 06-18-2009 |
20090237060 | SWITCHING POWER SUPPLY CONTROL - A switching power supply controller includes a comparator to compare a feedback signal to a first limit and a second limit, one of which includes a ramp. Limit generators may be used to generate limit signals in response to power supply signals, control signals, and/or output signals. An error amplifier may be used to generate the feedback signal in response to an output signal and an input control signal. A switching power supply may alternatively include an oscillator that shifts the switching frequency in response to the input control signal. | 09-24-2009 |
20110062928 | SWITCHING POWER SUPPLY CONTROLLER WITH HIGH FREQUENCY CURRENT BALANCE - A controller for a multi-phase switching power supply shuffles the sequence of the phases in response to a load transient to prevent synchronization of one or more phases with high-frequency load transients. The sequence may be shuffled by varying the frequency and/or sequence of the switching control signals to introduce a random variation in the phases. | 03-17-2011 |
20140035543 | PHASE DOUBLING FOR SWITCHING POWER SUPPLY - A switching power supply control system may include logic to generate a greater number of second switching control signals in response to a first number of original switching control signals. For example, the logic may increase the number of phases that may be controlled by an existing switching power supply controller. The logic may be configured to steer feedback signals from the increased number of phases back to original feedback inputs on the controller. | 02-06-2014 |