Abstract:
A bus switch is protected from undershoots on either of its terminals. The bus switch transistor is an n-channel metal-oxide-semiconductor (MOS) with its source connected to a first bus and its drain connected to a second bus. During isolation, the gate node of the bus switch transistor is discharged to ground by a pulsed transistor, and then kept at ground by a leaker transistor. Sense-pulse circuits are attached to the first and second bus. When a low-going transition is detected by a sense-pulse circuit, an n-channel connecting transistor is turned on, connecting the bus with the low-going transition to the gate node through a grounded-gate n-channel transistor. If an undershoot occurs, it is coupled to the gate node. Since both the gate and source of the bus switch transistor are coupled to the undershoot, the gate-to-source voltage never reaches the transistor threshold and the bus switch transistor remains off. An external direction signal may also be used to pre-activate the connecting transistor for one of the two sides of the bus switch transistor, replacing the sense-pulse circuits.
Abstract:
An electric tea maker device has a vessel with a reservoir having an opening that removably receives a tea brewing chamber. The chamber has an upper portion and a lower portion. The upper portion lacks perforations and the lower portion has perforations. The device has a plunger for the chamber that, when in a depressed position within the chamber, isolates tea from the reservoir. The vessel has a sensor for detecting when the chamber is inserted into the reservoir in a brewing position, a brew countdown timer that is activated by the sensor, and an indicator for alerting a user that a brew countdown is complete.
Abstract:
A variable speed selector for a juicer is user operable for selecting a speed from a speed range. The speed range is divisible into sub-ranges. A display area is adapted to depict the selected sub-range. The display area further comprises a list of vegetables or fruit. The display area also comprises a moving indicator that moves according to the selected speed, and appears adjacent to the fruit or vegetable for which the selected speed is optimal.
Abstract:
An electric tea maker device has a vessel with a reservoir having an opening that removably receives a tea brewing chamber. The chamber has an upper portion and a lower portion. The upper portion lacks perforations and the lower portion has perforations. The device has a plunger for the chamber that, when in a depressed position within the chamber, isolates tea from the reservoir. The vessel has a sensor for detecting when the chamber is inserted into the reservoir in a brewing position, a brew countdown timer that is activated by the sensor, and an indicator for alerting a user that a brew countdown is complete.
Abstract:
A variable speed selector for a juicer is user operable for selecting a speed from a speed range. The speed range is divisible into sub-ranges. A display area is adapted to depict the selected sub-range. The display area further comprises a list of vegetables or fruit. The display area also comprises a moving indicator that moves according to the selected speed, and appears adjacent to the fruit or vegetable for which the selected speed is optimal.
Abstract:
The present technology enables data communication between a kettle body and a power base of a cordless kettle. This enables a user to view kettle data and control functions or parameters such as temperature, from the power base of a cordless kettle.