Biphasic dickson switched capacitor converter
AssigneeSouthchip Semiconductor Technology (Shanghai) Co., Ltd.
InventorsXing Liang, Wei Zhao
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Abstract
A biphasic Dickson switched capacitor converter includes an auxiliary circuit, a first branch and a second branch, the auxiliary circuit is connected between the first branch and the second branch, and electric charges at one of the first branch and the second branch are transferred to another of the first branch and the second branch by controlling the auxiliary circuit during a dead time when primary power transistors are turned off to realize the primary power transistors turn on at zero voltage and reduce a switching loss.
Claims12
A biphasic dickson switched capacitor converter, comprising a first branch, a second branch and an auxiliary circuit, wherein the auxiliary circuit is connected between the first branch and the second branch, the first branch and the second branch are connected in parallel to an output terminal of the biphasic dickson switched capacitor converter, and power transistors of the first branch and the second branch are primary power transistors;
- wherein
- the auxiliary circuit is configured to transfer an electric charge or electric charges on one of the first branch and the second branch to another of the first branch and the second branch during a dead time when the primary power transistors are turned off, so that voltage difference between both terminals of each of the primary power transistors become zero to, then the primary power transistors are turned on under a zero voltage respectively.
Dependencies are inferred from the claim text.