Digital voltage controller
OwnerKing Kuen Hauinventor
Life of this patent
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Abstract
A high-efficiency digital voltage controller capable of providing monotonically-varying stepwise voltage, said controller comprises of a plurality of two-terminal voltage modules connected in series; within each module one or more two-terminal voltage cells of identical voltage each and connected in series; within each module a plurality of switches controllable to connect any number of the voltage cells in series to the output terminals of the voltage module; the ratios of the magnitudes of voltage of any one voltage cell between the voltage modules being substantially equal to integer values uniquely defined by present invention, according to the numbers of voltage cells in each of the voltage modules; said plurality of switches being controlled by a control module implemented in any suitable logic.
Claims12
A voltage controlling apparatus, comprising:
- a number of at least one two-terminal voltage modules connected in series;
- between the two terminals of each voltage module a number of at least one two-terminal voltage cells connected in series, wherein the voltage magnitudes of the voltage cells are equal;
- wherein the magnitudes of the voltage cells between the voltage modules bear ratios V1:
- V2:
- V3:
- . . . Vm:
- . . . , in an order of increasing magnitude, V1:
- Vm=1:
- Π(Ni+1) where i=1 to m−1, Vm is the voltage magnitude of one single voltage cell of the mth voltage module, Ni, is the number of voltage cells in the ith voltage module, Πis a mathematical multiplication operator;
- in each voltage module a plurality of switches controllable to connect a selected number of voltage cells in series to the two terminals of the voltage module;
- a control module for controlling said switches.
A method of voltage control, said method comprising the steps of:
- connecting a number of at least one two-terminal voltage modules in series;
- between the two terminals of each voltage module connecting a number of at least one two-terminal voltage cells in series, wherein the voltage magnitudes of the voltage cells are equal;
- wherein the magnitudes of the voltage cells between the voltage modules bear ratios V1:
- V2:
- V3:
- . . . ,Vm:
- . . . , in an order of increasing magnitude, V1:
- Vm=1:Π(Ni+1) where i=1 to m−1, where Vm is the voltage magnitude of one single voltage cell of the mth voltage module, Ni is the number of voltage cells in the ith voltage module, Π is a mathematical multiplication operator;
- in each voltage module connecting a selected number of voltage cells in series to the two terminals of the voltage module by Ni+1 controllable switches;
- controlling said switches by a control module.
Dependencies are inferred from the claim text.