Conversion stage, electric converter including such a conversion stage, device for converting an AC current into DC current including such a converter, terminal for recharging an electric battery including such a converter or conversion device
First Claim
1. An electric conversion stage, capable of being connected on one hand to intermediate terminals of a DC voltage electric bus, and on the other hand to output terminals, the electric conversion stage comprising:
- P switching branches, P being greater than or equal to 2, the switching branches being connected in parallel between intermediate terminals, each switching branch including first and second controllable electronic switches connected serially and connected to each other by a midpoint, the first switch being connected between the first intermediate terminal and the corresponding midpoint, and the second switch being connected between the second intermediate terminal and the corresponding midpoint, each switch including a semiconductor element and a diode connected in anti-parallel to the semiconductor element, each semiconductor element being switchable between an on state and an off state,control means for controlling the electronic switches according to a control rule,wherein the conversion stage also comprises a capacitor connected between the two output terminals and, for each switching branch, an electromagnetic coil connected between a terminal of the capacitor and the midpoint of the corresponding switching branch, andwherein the control rule is selected from among a first control rule and a second control rule, the first control rule being such that the semiconductor element of each first switch is always off, and the second control rule being such that the semiconductor element of each second switch is always off.
1 Assignment
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Accused Products
Abstract
The electric conversion stage according to the invention can be connected on one hand to intermediate terminals of a DC voltage electric bus, and on the other hand to output terminals. It comprises P switching branches, P≧2, the switching branches being connected in parallel between the intermediate terminals, each switching branch including first and second controllable electronic switches connected serially and connected to each other by a midpoint, each switch including a semiconductor switching element and a diode connected in anti-parallel to the semiconductor element, and means for controlling the electronic switches according to a control law.
It also comprises a capacitor connected between the two output terminals and, for each switching branch, an electromagnetic coil connected between a terminal of the capacitor and the midpoint of the corresponding switching branch, and the control law is selected from among a first control law and a second control law, the first control law being such that the semiconductor element of each first switch is always off, and the second control law being such that the semiconductor element of each second switch is always off.
10 Citations
13 Claims
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1. An electric conversion stage, capable of being connected on one hand to intermediate terminals of a DC voltage electric bus, and on the other hand to output terminals, the electric conversion stage comprising:
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P switching branches, P being greater than or equal to 2, the switching branches being connected in parallel between intermediate terminals, each switching branch including first and second controllable electronic switches connected serially and connected to each other by a midpoint, the first switch being connected between the first intermediate terminal and the corresponding midpoint, and the second switch being connected between the second intermediate terminal and the corresponding midpoint, each switch including a semiconductor element and a diode connected in anti-parallel to the semiconductor element, each semiconductor element being switchable between an on state and an off state, control means for controlling the electronic switches according to a control rule, wherein the conversion stage also comprises a capacitor connected between the two output terminals and, for each switching branch, an electromagnetic coil connected between a terminal of the capacitor and the midpoint of the corresponding switching branch, and wherein the control rule is selected from among a first control rule and a second control rule, the first control rule being such that the semiconductor element of each first switch is always off, and the second control rule being such that the semiconductor element of each second switch is always off. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A terminal for recharging an electric battery, in particular a motor vehicle electric battery, comprising a housing and an electric connector designed to be electrically linked to the battery,
wherein the recharge terminal comprises a conversion element from one of an electric converter and a conversion device, the conversion element being positioned in the housing, wherein the electric converter is capable of being linked to an AC electrical network including M phase(s), M being greater than or equal to 1, the electric converter comprising: -
M input terminal(s), the or each input terminal corresponding to a phase of the AC network first and second intermediate terminals, and two output terminals, a first conversion stage, connected to the input terminals and including a voltage rectifier capable of converting the AC input voltage into a DC intermediate voltage delivered between the first and second intermediate terminals, and a second conversion stage, connected to the intermediate terminals at the output of the first conversion stage, wherein the second conversion stage is part of an electrical conversion stage capable of being connected on one hand to intermediate terminals of a DC voltage electric bus, and on the other hand to output terminals, the electric conversion stage comprising; P switching branches, P being greater than or equal to 2, the switching branches being connected in parallel between intermediate terminals, each switching branch including first and second controllable electronic switches connected serially and connected to each other by a midpoint, the first switch being connected between the first intermediate terminal and the corresponding midpoint, and the second switch being connected between the second intermediate terminal and the corresponding midpoint, each switch including a semiconductor element and a diode connected in anti-parallel to the semiconductor element, each semiconductor element being switchable between an on state and an off state, control means for controlling the electronic switches according to a control rule, wherein the electric conversion stage also comprises a capacitor connected between the two output terminals and, for each switching branch, an electromagnetic coil connected between a terminal of the capacitor and the midpoint of the corresponding switching branch, and wherein the control rule is selected from among a first control rule and a second control rule, the first control rule being such that the semiconductor element of each first switch is always off, and the second control rule being such that the semiconductor element of each second switch is always off, wherein the conversion device is a device for converting an alternating current into a direct current, the conversion device being capable of being linked to an AC electrical network including M phase(s), M being greater than or equal to 1, the conversion device comprising; a voltage transformer comprising a primary circuit having M primary winding(s), first and second secondary circuits each including M secondary winding(s), a first electric converter connected to the first secondary circuit and a second electric converter connected to the second secondary circuit, wherein the first and second electric converters are each corresponding to the electric converter. - View Dependent Claims (13)
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Specification