Half-bridge circuit, especially for connection of an electric motor in a vehicle, with a low side circuit element ( 1 ) with a control input ( 3 , G 1 ), a high side circuit element ( 2 ) with a control input ( 6 , G 2 ), in which the low side circuit element ( 1 ) and the high side circuit element ( 2 ) are connected in series between the voltage terminal and a ground terminal and an output (OUT) to control an electrical load is arranged between the high side circuit element and the low side circuit element, implemented according to the invention by integration in an integrated circuit.
1. Half-bridge circuit, especially for connection of an electric motor in a vehicle, with
a low side circuit element with a control input,
a high side circuit element with a control input,
in which the low side circuit element and the high side circuit element are connected in series between a voltage terminal and a ground terminal and an output to control an electrical load is arranged between the high side circuit element and the low side circuit element,
wherein it is designed as an integrated or molded or cast circuit, and
wherein the integrated circuit has electrically conducting leadframes separated from the two circuit elements that form terminal contacts for the two control inputs, the around terminal, the voltage terminal and/or the output, in which the leadframes are connected at least partially by electrical connection lines to the circuit elements.
2. Half-bridge circuit according to claim 1 ,
wherein the terminal contacts are arranged next to each other on a side edge of the integrated circuit.
3. Half-bridge circuit according to claim 2 ,
wherein the two terminal contacts are arranged on the outside for the control inputs of the two circuit elements.
4. Half-bridge circuit according to claim 3 ,
wherein the terminal contact for the output is arranged between the two terminal contacts for the voltage terminal and the ground terminal.
5. Half-bridge circuit according to claim 3 ,
wherein the terminal contact for the output is arranged next to the two terminal contacts for the voltage terminal and the ground terminal.
6. Half-bridge circuit according to claim 1 ,
wherein the two terminal contacts for the voltage terminal and the ground terminal are arranged right next to each other.
7. Half-bridge circuit according to claim 1 ,
wherein the two terminal contacts for the voltage terminal and the ground terminal are arranged between the two terminal contacts for the two control inputs.
8. Half-bridge circuit according to claim 1 ,
wherein the leadframes and/or additional electrical contact elements are press-fit, riveted, soldered or welded on.
9. Half-bridge circuit according to claim 1 ,
wherein the leadframes and/or the additional electrical contact elements have a hole for a screw connection or prongs for a press-fit or solder connection.
10. Half-bridge circuit according to claim 1 ,
wherein the prongs are bent in alternation in two spaced parallel planes.
11. A Half-bridge circuit according to claim 1 ,
wherein the leadframes, the protruding conductor tracks and/or the additional contact elements have a copper layer with a thickness of 35 μm to 5 μm and preferably with a thickness of 300 μm.
12. Half-bridge circuit according to claim 1 ,
wherein the integrated circuit is designed in one layer, whereas the substrate of the integrated circuit is two layers.
13. Method of manufacturing a half-bridge circuit with a low side circuit element with a control input and a high side circuit element with a control input, comprising the steps of:
connecting the low side circuit element and the high side circuit element in series between a voltage terminal and a ground terminal,
arranging an output to control an electrical load between the high side circuit element and the low side circuit element,
integrating, molding or casting the circuit,
separating electrically conducting leadframes from the two circuit elements that form terminal contacts for the two control inputs, the around terminal, the voltage terminal and/or the output, and
connecting the leadframes at least partially by electrical connection lines to the circuit elements.
14. Method according to claim 13 ,
further comprising the step of arranging the terminal contacts next to each other on a side edge of the integrated circuit.
15. Method according to claim 13 ,
further comprising the step of arranging the two terminal contacts on the outside for the control inputs of the two circuit elements.
16. Method according to claim 13 ,
further comprising the step of arranging the terminal contact for the output between the two terminal contacts for the voltage terminal and the ground terminal.
17. Method according to claim 13 ,
further comprising the step of arranging the terminal contact for the output next to the two terminal contacts for the voltage terminal and the ground terminal.
18. Method according to claim 13 ,
further comprising the step of arranging the two terminal contacts for the voltage terminal and the ground terminal right next to each other.
19. Method according to claim 13 ,
further comprising the step of arranging the two terminal contacts for the voltage terminal and the ground terminal between the two terminal contacts for the two control inputs.
20. Half-bridge circuit, especially for connection of an electric motor in a vehicle, with
a low side circuit element with a control input,
a high side circuit element with a control input,
in which the low side circuit element and the high side circuit element are connected in series between a voltage terminal and a ground terminal and an output to control an electrical load is arranged between the high side circuit element and the low side circuit element,
wherein it is designed as an integrated or molded or cast circuit, and
wherein the high side circuit element and/or the low side circuit element have protruding conductor tracks that form the terminal contacts for the control input, the voltage terminal, the ground terminal and/or the output.