US 12,292,848 B2
Bi-directional bus repeater
Katarzyna Nowak, Nijmegen (NL); and Geethanadh Asam, Nijmegen (NL)
Assigned to NEXPERIA B.V., Nijmegen (NL)
Filed by NEXPERIA B.V., Nijmegen (NL)
Filed on Sep. 27, 2022, as Appl. No. 17/953,649.
Claims priority of application No. 21199052 (EP), filed on Sep. 27, 2021.
Prior Publication US 2023/0097034 A1, Mar. 30, 2023
Int. Cl. G06F 13/42 (2006.01); G06F 13/40 (2006.01); H03K 3/037 (2006.01); H03K 19/20 (2006.01)
CPC G06F 13/4068 (2013.01) [H03K 3/037 (2013.01); H03K 19/20 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A bi-directional bus repeater comprising one or more repeater units, each repeater unit comprising:
a first input terminal;
a second input terminal;
a first pulldown element for pulling down a voltage at the first terminal in response to a first control signal;
a second pulldown element for pulling down a voltage at the second terminal in response to a second control signal;
a first pulldown controller for providing the first control signal in dependence of a voltage at the second input terminal;
a second pulldown controller for providing the second control signal in dependence of a voltage at the first input terminal;
wherein the first pulldown controller comprises a first input connected to the first input terminal using a first connection and a second input connected to the second input terminal using a second connection;
wherein the first pulldown controller is configured to provide the first control signal for activating the first pulldown element only after simultaneously detecting a high-to-low transition at its second input and a logical high at its first input;
wherein the second pulldown controller comprises a first input connected to the second input terminal using a first connection and a second input connected to the first input terminal using a second connection; and
wherein the second pulldown controller is configured to provide the second control signal for activating the second pulldown element only after simultaneously detecting a high-to-low transition at its second input and a logical high at its first input.