Abstract: Methods and apparatuses for providing a solution for incompatibility between nonsinusoidal waveform uninterruptible power supply (UPS) systems and active power factor correction (PFC) loads are disclosed. An embodiment of the invention includes generating a nonsinusoidal signal waveform (e.g., a voltage waveform), to be delivered to the load, with a pulse width modulation (PWM) duty width, sampling the nonsinusoidal signal waveform to collect output signal samples, and adjusting the duty width to control the nonsinusoidal signal waveform as a function of the output signal samples to deliver a desired signal characteristic (e.g., RMS signal level) to the load. In embodiments of the invention, the output duty width is adjusted differently in cases of rising and falling power consumption, respectively, by the load.

Abstract: An optical communication module includes a substrate, a lens carrier, and a ferrule. The substrate includes at least two transmitter/receiver chips. The transmitter/receiver chips include plural optoelectronic units with respective alignment marks. The lens carrier includes a frame and a lens array. The lens array includes plural lens units corresponding to respective optoelectronic units of the transmitter/receiver chips of the substrate. The ferrule is coupled with the lens carrier. The alignment marks of the plural optoelectronic units are passively aligned with corresponding lens units, so that the lens carrier and the substrate are precisely aligned with each other and combined together. After the lens carrier and the substrate are combined together, the ferrule and the lens carrier are combined together, so that a precise optical communication path is constructed.

Abstract: An optical communication module includes a substrate, a lens carrier, and a ferrule. The substrate includes at least two transmitter/receiver chips. The transmitter/receiver chips include plural optoelectronic units with respective alignment marks. The lens carrier includes a frame and a lens array. The lens array includes plural lens units corresponding to respective optoelectronic units of the transmitter/receiver chips of the substrate. The ferrule is coupled with the lens carrier. The alignment marks of the plural optoelectronic units are passively aligned with corresponding lens units, so that the lens carrier and the substrate are precisely aligned with each other and combined together. After the lens carrier and the substrate are combined together, the ferrule and the lens carrier are combined together, so that a precise optical communication path is constructed.

Abstract: Methods and apparatuses for providing a solution for incompatibility between nonsinusoidal waveform uninterruptible power supply (UPS) systems and active power factor correction (PFC) loads are disclosed. An embodiment of the invention includes generating a nonsinusoidal signal waveform (e.g., a voltage waveform), to be delivered to the load, with a pulse width modulation (PWM) duty width, sampling the nonsinusoidal signal waveform to collect output signal samples, and adjusting the duty width to control the nonsinusoidal signal waveform as a function of the output signal samples to deliver a desired signal characteristic (e.g., RMS signal level) to the load. In embodiments of the invention, the output duty width is adjusted differently in cases of rising and falling power consumption, respectively, by the load. Techniques disclosed herein find broad applicability in UPS systems and inverters and improve efficiency and reliability for end users and utility providers.

Abstract: Methods and apparatuses for providing a solution for incompatibility between nonsinusoidal waveform uninterruptible power supply (UPS) systems and active power factor correction (PFC) loads are disclosed. An embodiment of the invention includes generating a nonsinusoidal signal waveform (e.g., a voltage waveform), to be delivered to the load, with a pulse width modulation (PWM) duty width, sampling the nonsinusoidal signal waveform to collect output signal samples, and adjusting the duty width to control the nonsinusoidal signal waveform as a function of the output signal samples to deliver a desired signal characteristic (e.g., RMS signal level) to the load. In embodiments of the invention, the output duty width is adjusted differently in cases of rising and falling power consumption, respectively, by the load. Techniques disclosed herein find broad applicability in UPS systems and inverters and improve efficiency and reliability for end users and utility providers.