Granted Patent B2

US 12,738,844 · App. 18/636,443 · Granted Sep 15, 2026

Inventors: Marco Schreiter (Dresden, DE); Steffen Ritzmann (Reutlingen, DE)

Assignee: ROBERT BOSCH GMBH

H02M3/156H02M1/0025H02M3/1584

Abstract

Claims (27)

1 . A conversion unit configured to decrease an input voltage into an output voltage, comprising:

a step-down converter circuit with at least two voltage inputs for the input voltage; and

at least two control units, wherein each of the control units is assigned to a voltage input, and wherein each of the control units is configured to:

output a switch signal upon receipt of a time signal in order to apply the input voltage to the assigned voltage input, and reset the switch signal upon receipt of a reset signal,

receive the switch signal of another control unit and, upon receipt of the switch signal of the another control unit, to reset a permission signal,

output the switch signal only if the permission signal is reset, and

provide the permission signal when the switch signal is output.

2 . The conversion unit according to claim 1 , wherein each control unit is configured to use the switch signal to cause an input switch unit to apply the input voltage to the assigned voltage input.

3 . The conversion unit according to claim 1 , wherein each of the control units is configured to use an inverted switch signal to cause a reference switch unit to apply a reference voltage to the assigned voltage input.

4 . The conversion unit according to claim 1 , wherein each control unit of the at least two control units includes a first D flip-flop and a second D flip-flop, wherein the first D flip-flop is configured to output the switch signal upon receipt of the time signal at a dynamic input of the control unit, and wherein the second D flip-flop is configured to provide the permission signal upon receipt of the switch signal and to reset the permission signal upon receipt of the switch signal from the another control unit.

5 . The conversion unit according to claim 4 , wherein:

the first D flip-flop includes a reset input to which a resetting signal is outputtable,

the resetting signal is providable by an OR gate,

the reset signal and an output of a NOR gate are transmittable as inputs to the OR gate, and

the switch signal and an inverted permission signal are transmittable as inputs to the NOR gate.

6 . The conversion unit according to claim 4 , wherein the second D flip-flop includes a reset input to which the switch signal of the other control unit is appliable.

7 . The conversion unit according to claim 4 , wherein each control unit of the at least two control units is configured to apply the switch signal to a dynamic input of the second D flip-flop of the control unit.

8 . The conversion unit according to claim 4 , wherein respective data inputs of the first D flip-flop and/or of the second D flip-flop are logical 1.

9 . The conversion unit according to claim 4 , wherein a buffer is arranged between the second D flip-flop and the first D flip-flop in order to transmit the switch signal in a delayed manner.

10 . An integrated circuit, comprising:

a conversion unit configured to decrease an input voltage into an output voltage, including:

a step-down converter circuit with at least two voltage inputs for the input voltage; and

at least two control units, wherein each of the control units is assigned to a voltage input, and wherein each of the control units is configured to:

output a switch signal upon receipt of a time signal in order to apply the input voltage to the assigned voltage input, and reset the switch signal upon receipt of a reset signal,

receive the switch signal of another control unit and, upon receipt of the switch signal of the another control unit, to reset a permission signal,

output the switch signal only if the permission signal is reset, and

provide the permission signal when the switch signal is output.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (10)