Vertiv Corporation

Livio Alessandro Tilotta

Stefano Pecorari

Graziano Galuppi

Stephen Michael Major

Brian Scott Cogar

An adaptive direct current (DC) conversion system may include a multi-mode DC converter circuit including two or more power switches, where the multi-mode DC converter circuit is operable in two or more pulse width modulation (PWM) modes based on two or more PWM signal sets provided to the two or more power switches. The system may further include a PWM controller, where the PWM controller controls which of the two or more PWM modes the multi-mode DC converter circuit operates in by providing the multi-mode DC converter circuit with the associated one of the two or more PWM signal sets.

Adaptive DC/DC PWM control

The present disclosure relates to an uninterruptible power supply (UPS) for monitoring and prioritizing use of available power. The UPS has an electronic controller with a memory and a software control module. The UPS also has a battery, a rectifier for rectifying available AC power from a primary external AC power source to produce DC power, an inverter in communication with the rectifier for generating AC power from the DC power provided by the rectifier, and a DC/DC converter in communication with the rectifier for producing a DC charging current for use in charging the battery. The electronic controller and the software control module are configured to dynamically prioritize the use of available power from at least one of the primary AC power source and from the battery, to maintain adequate power to a load being supported by the UPS, as well as to charge the battery of the UPS when predetermined operating conditions are met.

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Imola, Italy

Livio Alessandro Tilotta