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Shenzhen Sunlite Technology Co.,Ltd

Factory Address:Room 401, building 3, Jufeng Huasheng Industrial Park, 
Xiaobian community, Chang'an Town, Dongguan City, Guangdong Province, China

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Industry information

The Boost Regulator

Source:    Author:新望    Release time:2017-08-25    Views:2081

In a forward (or buck) regulator power is continuously supplied to the outlet\filter capacitor. In a boost regulator, however, energy is pumped in a cyclic manner. The filter capacitor therefore has to be of a higher value.  The boost regulator, like the flyback regulator, pumps energy into the outlet\filter capacitor in a cyclic manner, and it is therefore desirable to operate in the discontinuous mode with a fixed peak current through the inductor.  The diode conduction time in a boost regulator, unlike the flyback regulator, is not fixed, but varies with the input voltage.Ipk = 2 x Iout,max x (Vout / Vin,min)

Tdon = (L x Ipk) / (Vout - Vin)

Output voltage is regulated by controlling the duty cycle.Vout = ((Ton / Tdon) + 1) x Vin

Ripple voltage is directly proportional to diode conduction time.Tdon max = (L x Ipk) / (Vout - Vin,max)

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Shenzhen Sunlite Technology Co.,Ltd.
Tel:86-0769-81157893 Mobile/Whatsapp :86-13590431675
Address:Room 401, building 3, Jufeng Huasheng Industrial Park, Xiaobian community, Changan Town, Dongguan City, Guangdong Province, China