Patent
Digitally synthesized multiple phase pulse width modulation
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TLDR
In this paper, a single analog to digital conversion of a single analogue error signal to multiple, phase shifted, variable duty cycle clocks is provided, where the analog error signal is fed to a phase shifting input of a phase lock loop.Abstract:
A DC to DC converter includes multiple stages to share power handling. The stages are connected in parallel paths between the source input and the load output of the power converter. An analog error signal is generated by comparing the load output signal to a reference signal. The error signal is fed to a phase shifting input of a phase lock loop. The phase lock loop is connected to receive a reference clock signal and maintain a relative clock signal shifted in phase from the reference clock signal by an amount depending on the error signal. Digital divider circuits and digital logic circuits are used to produce phase shifted variable pulse width control signals for the stages. The parallel connected power conversion stages equally share the transfer of power from the input source to an output load. A single analog to digital conversion of a single analog error signal to multiple, phase shifted, variable duty cycle clocks is provided.read more
Citations
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Patent
Power converter circuitry and method
Kent Kernahan,John Carl Thomas +1 more
TL;DR: In this article, a control system and method for simultaneously regulating the operation of a plurality of different types of switching power converters is presented, where the system utilizes in regulating the sampled data and nonlinear feedback control loops.
Patent
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TL;DR: In this paper, a flexible, reliable and economical DC-to-DC power converter system includes a plurality of DC to DC converter units, a pulse width modulation current share bus interconnecting the DC to DCC converter units and a synchronization signal connected to each of the DCC to DDC converter units to synchronize each of them to the same frequency, and a digital signal processor has a calibration table matching control parameters to the specific circuit characteristics of the power section.
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Gerald Deboy,Yi Tang +1 more
TL;DR: In this article, a series circuit with a number of converter units is connected between the output terminals of the power converter circuit, and at least one converter unit is configured to regulate generation of the output current such that a frequency and/or a phase of output current are dependent on the continuous synchronization signal.
Patent
DC-to-DC converter with improved transient response
TL;DR: In this paper, a DC to DC converter includes a comparator configured to compare a reference signal with a second signal, which is used to provide a control signal to a driver that drives the output voltage of the DC-to-DC converter in response to a comparison of the reference and second signals.
References
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Patent
Microprocessor-controlled DC-DC converter
TL;DR: In this article, a microprocessor-controlled DC-DC converter includes a controllable switch for generating at least one output voltage (Ua) depending upon the output voltage.
Patent
Multiple output DC-to-DC converter having enhanced noise margin and related methods
TL;DR: In this paper, the authors propose a circuit that separates in time switching of the respective power switches of the DC-to-DC converter circuits which would otherwise be switching at nearly the same time, such as based upon a same desired output level.
Patent
Method and apparatus for a multiple stage sequential synchronous regulator
Barry K. Kates,Edward P. Sheehan +1 more
TL;DR: In this article, a multiple-stage sequential synchronous regulator including multiple switch stages activated in a sequential manner to reduce the frequency, stress and power loss per stage is proposed, where each stage is implemented using buck regulator topology including an inductor and two synchronous switches, preferably comprising MOSFETs.
Patent
Power source apparatus
TL;DR: A power source apparatus comprises a DC power source, a switching element, and a controller for performing an ON/OFF operation of said switching element at a predetermined switching frequency as discussed by the authors.
Patent
Multiple high-voltage power supply and its control method
TL;DR: In this article, the authors propose to control a plurality of high voltages with one A/D converter by providing a first group of switches for changing over feedback signals inputted into one A-D converter, and a second group of switch points for changing the pulse width reference values outputted to a timer circuit.