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US 12,738,830 B2Granted
DC/DC converter with combined current and voltage regulation
AssigneeRobert Bosch GmbH
InventorGholamabas Esteghlal
Life of this patent
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Abstract
The invention relates to a DC-DC converter arrangement with at least one DC-DC converter, wherein the DC-DC converter comprises a current regulation and a voltage regulation. For the current regulation, a first component is provided hereby for regulation based on the primary-side current at the DC/DC converter, and a second component is provided for regulation based on the secondary-side current at the DC/DC converter.
Claims8
A DC-DC converter apparatus, with:
- a DC-DC converter (2) configured to convert an input DC voltage into an output DC voltage;
- and
- a control device (1) with:
- a voltage control (11) configured to determine a first control variable (R1) for the DC/DC converter (2) using a target value (U_soll) for the output voltage of the DC/DC converter (2) and a measured value (U_out) for the output voltage of the DC/DC converter (2), and
- a current control (12) configured to determine a second control variable (R2) for the DC/DC converter (2);
- wherein the current control (12) comprises a first regulator device (12a) and a second regulator device (12b),
- wherein the first regulator device (12a) is configured so as to determine a first current control variable (R_i_1) using an electrical current (l_p) at the input of the DC-DC converter (2),
- the second regulator device (12b) is configured so as to determine a second current control variable (R_i_2) using an electrical current (l_s) at the output of the DC/DC converter (2), and
- wherein the current control (12) is configured so as to determine the second control variable (R2) using the first current control variable (R_i_1) and the second current control variable (R_i_2);
- and
- wherein the control device (1) is configured so as to actuate the DC/DC converter (2) using a combination (R) of the first control variable (R1) and the second control variable (R2).
8 more elements
A method of operating a DC-DC converter apparatus with at least one DC-DC converter (2), with the steps of:
- determining (S1) a first control variable (R1) using a target value (U_soll) for the output voltage of the DC/DC converter (2) and a measured value (U_out) for the output voltage of the DC/DC converter;
- determining (S2) a first current control variable (R_i_1) using an electrical current (l_p) at the input of the DC/DC converter (2);
- determining (S3) a second current control variable (R_i_2) using an electrical current (l_s) at the output of the DC-DC converter (2);
- determining (S4) a second control variable (R_2) for the DC/DC converter (2) using the first current control variable (R_i_1) and the second current control variable (R_i_2);
- and
- actuating (S5) the at least one DC/DC converter (2) using a combination (R) of the first control variable (R1) and the second control variable (R2).
3 more elements
Dependencies are inferred from the claim text.