Patent application number | Description | Published |
20080253753 | Brushed Motor Control with Voltage Boost for Reverse and Braking - A single low side power transistor switch is used to efficiently control a brushed motor in a forward rotational direction. A boost voltage power supply is used to supply voltage to the brushed motor in a reverse rotational direction and/or braking from the forward rotational direction. A digital device controls the brushed motor rotational speed and rotational directions. | 10-16-2008 |
20080272826 | Interrupt/Wake-Up of an Electronic Device in a Low Power Sleep Mode When Detecting a Sensor or Frequency Source Activated Frequency Change - Activation of an external sensor coupled to an electronic device will change the frequency of a low power oscillator in the electronic device that runs during a low power sleep mode of the electronic device. When a change in frequency of the low power oscillator is detected, the electronic device will wake-up from the low power sleep mode. In addition, when a change in frequency from an external frequency source is detected, the electronic device will wake-up from the low power sleep mode. | 11-06-2008 |
20080272827 | Interrupt/Wake-Up of an Electronic Device in a Low Power Sleep Mode When Detecting a Sensor or Frequency Source Activated Frequency Change - Activation of an external sensor coupled to an electronic device will change the frequency of a low power oscillator in the electronic device that runs during a low power sleep mode of the electronic device. When a change in frequency of the low power oscillator is detected, the electronic device will wake-up from the low power sleep mode. In addition, when a change in frequency from an external frequency source is detected, the electronic device will wake-up from the low power sleep mode. | 11-06-2008 |
20080272835 | Interrupt/Wake-Up of an Electronic Device in a Low Power Sleep Mode When Detecting a Sensor or Frequency Source Activated Frequency Change - Activation of an external sensor coupled to an electronic device will change the frequency of a low power oscillator in the electronic device that runs during a low power sleep mode of the electronic device. When a change in frequency of the low power oscillator is detected, the electronic device will wake-up from the low power sleep mode. In addition, when a change in frequency from an external frequency source is detected, the electronic device will wake-up from the low power sleep mode. | 11-06-2008 |
20080272836 | Interrupt/Wake-Up of an Electronic Device in a Low Power Sleep Mode When Detecting a Sensor or Frequency Source Activated Frequency Change - Activation of an external sensor coupled to an electronic device will change the frequency of a low power oscillator in the electronic device that runs during a low power sleep mode of the electronic device. When a change in frequency of the low power oscillator is detected, the electronic device will wake-up from the low power sleep mode. In addition, when a change in frequency from an external frequency source is detected, the electronic device will wake-up from the low power sleep mode. | 11-06-2008 |
20110084933 | LAMINATED PRINTED CIRCUIT BOARD INDUCTIVE TOUCH SENSOR - A multilayer printed circuit board provides both physical and electrical attributes necessary for creating an inductive touch sensor panel. Inductive sense coils are formed on a surface of first layer of the multilayer printed circuit board. A second layer is used as a spacer between the first layer and a third layer. The first, second and third layers of the multilayer printed circuit board form chambers in which the inductive sense coils are disposed therein. When a force is applied to a portion of the third layer proximate to an inductive sense coil, a metal target on a face of the third layer is biased toward the inductive sense coil and thereby changes the inductance value thereof. | 04-14-2011 |
20140176119 | Mains Voltage Zero-Crossing Detector - A mains voltage zero-crossing detector has a constant voltage forced on an external node by driving transistor devices with appropriate control signals provided by a feedback loop around a highly power efficient class B configuration comprising an operational amplifier having single ended dual outputs and a class B control circuit. Mains power zero crossings may then be detected by monitoring the drive current of devices driven by this amplifier. Wherein Class B control and current mode detection provide accurate detection of the driven signal without depending on any voltage threshold that may depend on temperature, process fabrication and/or supply voltage. | 06-26-2014 |