Abstract: Disclosed techniques achieve soft-switching conditions by determining relative timing of switch states and events, and making recurring timing adjustments in successive cycles (i.e., cycle-by-cycle) to reduce timing errors that introduce switching losses. Timing adjustments provide a prediction of when an optimal soft-switching condition will exist during a subsequent cycle so that switch-actuation signals are provided, irrespective of inherent signaling and feedback delays, in advance of actually observing the condition, thereby subsequently changing a switching state within a desired threshold of the targeted soft-switching condition. Error in the prediction is observed and compensating corrections applied during the next cycle.

Abstract: Disclosed techniques achieve soft-switching conditions by determining relative timing of switch states and events, and making recurring timing adjustments in successive cycles (i.e., cycle-by-cycle) to reduce timing errors that introduce switching losses. Timing adjustments provide a prediction of when an optimal soft-switching condition will exist during a subsequent cycle so that switch-actuation signals are provided, irrespective of inherent signaling and feedback delays, in advance of actually observing the condition, thereby subsequently changing a switching state within a desired threshold of the targeted soft-switching condition. Error in the prediction is observed and compensating corrections applied during the next cycle.

Abstract: Asynchronous electrical circuitry produces a stationary carrier signal and encodes a system input signal amplitude into output signal time-sequence information by establishing at a digitizer an operating point value as an average amplitude of the system input signal. It applies to the digitizer a multicomponent digitizer-input signal corresponding to a sum of a passband signal component and a feedback signal component to produce a pulse-width modulated digitizer output signal representing the system input signal. An asynchronous time delay is introduced to produce the pulse-width modulated system output signal. The circuitry performs digital-to-analog conversion (DAC) to the pulse-width modulated system output signal to produce a DAC output signal. The DAC output signal or its summation with the passband signal component is integrated to produce the feedback signal component. Additional, multiple-order embodiments include sequential feedback paths or carrier-shaping functions.

Abstract: Disclosed techniques achieve soft-switching conditions by determining relative timing of switch states and events, and making recurring timing adjustments in successive cycles (i.e., cycle-by-cycle) to reduce timing errors that introduce switching losses. Timing adjustments provide a prediction of when an optimal soft-switching condition will exist during a subsequent cycle so that switch-actuation signals are provided, irrespective of inherent signaling and feedback delays, in advance of actually observing the condition, thereby subsequently changing a switching state within a desired threshold of the targeted soft-switching condition. Error in the prediction is observed and compensating corrections applied during the next cycle.

Abstract: Asynchronous electrical circuitry (400, 500, 600, 700, 800, 900) produces a stationary carrier signal (470, 470?) and encodes a system input signal (460, 460?) amplitude into output signal time-sequence information by establishing at a digitizer (410, 510, 610, 710, 810, 910) an operating point value (416, 516, 616, 716, 816, 916) as an average amplitude of the system input signal. It applies to the digitizer a multicomponent digitizer-input signal (470, 470?) corresponding to a sum of a passband signal component and a feedback signal component to produce a pulse-width modulated digitizer output signal (480, 480?) representing the system input signal. An asynchronous time delay (t(s)) is introduced to produce the pulse-width modulated system output signal (y(s)). The circuitry performs digital to analog conversion (DAC) to the pulse-width modulated system output signal to produce a DAC output signal (490, 490?).

Abstract: A circuit for generating a series of pulses in response to a first signal, the circuit comprising: a lossy integrator which receives a second signal as its input; and a comparator which: receives the output of the lossy integrator at one of its inputs; and receives the first signal at the other of its inputs. This circuit can be incorporated into, for example, audio-frequency amplifiers and regulated power supplies.

Abstract: A power supply control system for a switch-mode power supply comprises a cycle-by-cycle, asynchronous control scheme. The system makes use of including a signal summing and comparing stage and a control signal feedback system configured to control shaping of first and second portions of a comparison signal provided to comparator circuitry that generates a switching-circuitry drive signal.

Abstract: A circuit for generating a series of pulses in response to a first signal, the circuit comprising: a lossy integrator which receives a second signal as its input; and a comparator which: receives the output of the lossy integrator at one of its inputs; and receives the first signal at the other of its inputs. This circuit can be incorporated into, for example, audio-frequency amplifiers and regulated power supplies.

Abstract: A Class E amplifier having a FET with a transistor (T2) connected via a serial “LC” circuit to the load, and connected to a supply voltage via a constant current source, the amplifier further including a resonant controller, wherein the resonant controller provides power control for an AC application and includes resonance tracking system of an input inductor being fed by a power source with the resonance tracking system using a resistor resonance detector having two sense resistor loads in series.

Abstract: Power supply control system for a switching-mode power supply with cycle by cycle, asynchronous control scheme, making use of simulated electronic logic gates for the logical switching means and further including assimilation and artificial intelligence neural control network, such as a perceptron, to determine the electronic simulation and to make use of a mixing of instant and average signals through a feedback system.

Abstract: An apparatus for driving a voltage source such as a discharge or LED lamp using a power booster receiving an AC voltage source configured through an inductor to turn on and off periodically in response to a duty cycle of a dimming control signal or a transformer starting a new cycle, for regulating a low voltage AC signal. The booster control circuitry adjusting the current feed to a determined target boost voltage according to sensed input from primarily a single comparator which compares any one of (but not limited to) a) the output boosted voltage, b) the globe current, or c) the inductor input current.

Abstract: An apparatus for driving a voltage source such as a discharge or LED lamp using a power booster receiving an AC voltage source configured through an inductor to turn on and off periodically in response to a duty cycle of a dimming control signal or a transformer starting a new cycle, for regulating a low voltage AC signal. The booster control circuitry adjusting the current feed to a determined target boost voltage according to sensed input from primarily a single comparator which compares any one of (but not limited to) a) the output boosted voltage, b) the globe current, or c) the inductor input current.