HIGH-EFFICIENCY PUMP AND DUMP CIRCUIT HAVING REDUCED STORAGE CAPACITOR

摘要

A device includes an input voltage supply line, a processing component, an input capacitor, a storage capacitor, a buck/boost converter and a controlling component. The input voltage supply line receives an input voltage, Vin. The processing component receives Vin and performs a function using Vin. The input capacitor stores an input capacitance voltage, Vcin, from Vin. The storage capacitor stores a storage capacitance voltage, Vcs. The buck/boost converter provides Vcs to the storage capacitor in a first state such that Vcs>Vcin, and provides energy to the input capacitor from the storage capacitor in a second state. The controlling component controls the buck/boost converter to operate in the second state when Vin is below it predetermined threshold.

主权项

1. A device comprising:
an input voltage supply line operable to receive an input voltage, Vin; a processing component arranged to receive Vin and operable to perform a function using Vin; an input capacitor operable to store an input capacitance voltage, Vcin, from Vin; a storage capacitor operable to store a storage capacitance voltage, Vcs; a buck/boost converter operable to provide Vcs to the storage capacitor in a first state such that Vcs>Vcin, and operable to provide energy to the input capacitor from the storage capacitor in a second state; and a controlling component operable to control the buck/boost converter to operate in the second state when Vin is below a predetermined threshold.