Abstract: Beverage systems are provided that include a filter unit, a dispensing outlet, a pump to pump the fluid from a fluid source, through the filter unit, to the dispensing outlet, a flow meter to measure a flowrate of the fluid being pumped through the system, and a controller including a processor and a memory storing instructions which, when executed by the processor cause the at least one processor to perform operations comprising: receiving a request to dispense a filtered beverage, operating the pump at a first duty to pump the fluid from the fluid source, through the filter unit, to the dispensing outlet, receiving, via the at least one flow meter, the flowrate of the fluid being pumped, comparing the flowrate to a predetermined flowrate, and operating the pump at a second duty, greater than the first duty, responsive to determining that the flowrate is less than the predetermined flowrate.

Abstract: An isolation unit may include input pins to receive an electrical signal induced by ambient sound waves incident on an appliance in a powered-off state, one or more first transformers, connected to the input pins, to electrically isolate the induced electrical, one or more second transformers, connected to the first transformers, to provide a common mode choke function on the induced electrical signal, one or more inductors, connected to the one or more second transformers, one or more resistors, connected to the one or more inductors, wherein the one or more inductors and the one or more resistors are configured to limit an amplitude of a current of the induced electrical signal, and output pins, connected to the one or more inductors, to receive a modified electrical signal from the one or more inductors to propagate the modified electrical signal to a downstream cable.

Abstract: An isolation unit may include input pins to receive an electrical signal induced by ambient sound waves incident on an appliance in a powered-off state, one or more first transformers, connected to the input pins, to electrically isolate the induced electrical, one or more second transformers, connected to the first transformers, to provide a common mode choke function on the induced electrical signal, one or more inductors, connected to the one or more second transformers, one or more resistors, connected to the one or more inductors, wherein the one or more inductors and the one or more resistors are configured to limit an amplitude of a current of the induced electrical signal, and output pins, connected to the one or more inductors, to receive a modified electrical signal from the one or more inductors to propagate the modified electrical signal to a downstream cable.

Abstract: A disconnect unit may include a first interface, configured to communicate with an accessory, a second interface, configured to communicate with a communication device, a relay, configured to physically connect and disconnect a communication path between the first interface and the second interface, and a codec unit, configured to maintain a software-level connection with the communication device via the second interface on behalf of the accessory.

Abstract: An isolation unit may include input pins to receive an electrical signal induced by ambient sound waves incident on an appliance in a powered-off state, one or more first transformers, connected to the input pins, to electrically isolate the induced electrical, one or more second transformers, connected to the first transformers, to provide a common mode choke function on the induced electrical signal, one or more inductors, connected to the one or more second transformers, one or more resistors, connected to the one or more inductors, wherein the one or more inductors and the one or more resistors are configured to limit an amplitude of a current of the induced electrical signal, and output pins, connected to the one or more inductors, to receive a modified electrical signal from the one or more inductors to propagate the modified electrical signal to a downstream cable.