Patent ID: 11959947
Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
Field: Measurement (Instruments)
Classification: CPC G  B  H | IPC B  G

Claim 8:
9. The overvoltage protection circuit of claim 8, wherein the switch is implemented as a first npn adjusting transistor, wherein the adjusting device further includes a second npn adjusting transistor, a second adjusting resistor, a third adjusting resistor, a fourth adjusting resistor and a fifth adjusting resistor, wherein a first terminal of the first npn adjusting transistor is connected to a first terminal of the first adjusting resistor, wherein a second terminal of the first adjusting resistor is connected to the reference potential, wherein a second terminal of the first npn adjusting transistor is connected to the control device, wherein a control terminal of the first npn adjusting transistor is connected to a second terminal of the second npn adjusting transistor, wherein the first terminal of the second npn adjusting transistor is connected to the reference potential, wherein the second adjusting resistor and the third adjusting resistor are connected to one another in series between the input terminal and the reference potential, wherein a control terminal of the second npn adjusting transistor is connected to an adjusting node between the second adjusting resistor and the third adjusting resistor, wherein a first terminal of the fourth adjusting resistor is connected to the adjusting node, wherein a second terminal of the fourth adjusting resistor is connected to the second terminal of the second npn adjusting transistor, wherein a first terminal of the fifth adjusting resistor is connected to the second terminal of the second npn adjusting transistor, and wherein a second terminal of the fifth adjusting resistor is connected to the input terminal.