Class / Patent application number | Description | Number of patent applications / Date published |
330007000 | WITH CAPACITIVE AMPLIFYING DEVICE | 7 |
20090302936 | AMPLIFIERS USING GATED DIODES - A circuit comprises a control line and a two terminal semiconductor device having first and second terminals. The first terminal is coupled to a signal line, and the second terminal is coupled to the control line. The two terminal semiconductor device is adapted to have a capacitance when a voltage on the first terminal relative to the second terminal is above a threshold voltage and to have a smaller capacitance when a voltage on the first terminal relative to the second terminal is below the threshold voltage. The control line is coupled to a control signal and the signal line is coupled to a signal and is output of the circuit. A signal is placed on the signal line and voltage on the control line is modified (e.g., raised in the case of n-type devices, or lowered for a p-type devices). When the signal falls below the threshold voltage, the two terminal semiconductor device acts as a very small capacitor and the output of the circuit will be a small value. When the signal is above the threshold voltage, the two terminal semiconductor device acts as a large capacitor and the output of the circuit will be influenced by both the value of the signal and the value of the modified voltage on the control line and therefore the signal will be amplified. | 12-10-2009 |
20110068860 | DETECTION CIRCUIT WITH IMPROVED ANTI-BLOOMING CIRCUIT - The detection circuit comprises a photodiode connected to an input of a capacitive transimpedance amplifier. The circuit comprises an anti-blooming circuit connected between the input and an output of the capacitive trans-impedance amplifier. The anti-blooming circuit comprises a field effect transistor connected between the input and output of the capacitive trans-impedance amplifier. The transistor is of pMOS type when the input of the capacitive transimpedance amplifier is connected to a cathode of the photodiode. The transistor is of nMOS type when the input of the capacitive transimpedance amplifier is connected to an anode of the photodiode. | 03-24-2011 |
20110215864 | SWITCHED CAPACITOR AMPLIFIER - Provided is a switched capacitor amplifier capable of outputting a stable output voltage. The switched capacitor amplifier is capable of operating so as to eliminate a charge/discharge time difference between an input capacitor ( | 09-08-2011 |
20110291753 | Segmented Linear FM Power Amplifier - Various apparatuses and methods for amplifying an FM signal in a segmented linear power amplifier are disclosed herein. For example, some embodiments provide an apparatus including a signal input, a signal output, and an output driver connected between the signal input and the signal output. The output driver includes a number of driver segments connected in parallel, each having an input connected to the signal input and each having an output. The output driver also includes a number of series capacitors, each associated with one of the driver segments. The series capacitors are each connected between the output of its associated driver segment and the signal output. The output driver also includes a number of shunt capacitors, each associated with one of the driver segments having an associated series capacitor. The shunt capacitors are each connected between the output of their associated driver segment and a ground. | 12-01-2011 |
20120182067 | SWITCHED-CAPACITOR PROGRAMMABLE-GAIN AMPLIFIER - A programmable-gain amplifier has a first input node coupled to receive a first input signal and a control input coupled to receive a gain select signal. The programmable-gain amplifier includes a differential amplifier having a first input and a first output and a plurality of capacitors. A first terminal of each of the plurality of capacitors is coupled to the first input of the differential amplifier, and a second terminal of each of the plurality of capacitors is coupled to the first input node during a sampling phase of the programmable-gain amplifier and selectively coupled to the first output of the differential amplifier, based on the gain select signal, during a gain phase of the programmable-gain amplifier. | 07-19-2012 |
20130106505 | DUAL-MODE CAPACITIVE TRANSIMPEDANCE AMPLIFIER, AND READ-OUT DEVICE INCORPORATING THE SAME | 05-02-2013 |
20130241635 | Capacitor Amplifying Circuit and Operating Method Thereof - A capacitor amplifying circuit and an operating method thereof are disclosed. The capacitor amplifying circuit includes a first current source, a second current source, a current mirror unit, and an output capacitor. There is a proportion relationship between a first current of the first current source and a second current of the second current source. The current mirror unit is coupled between the first current source and the second current source. The current mirror unit includes N stages of current mirror circuit in series, wherein N is larger than or equal to 1. Each of the N stages of current mirror circuit has a proportional constant respectively. Two terminals of the output capacitor are coupled to the current mirror unit and a ground terminal respectively. The equivalent capacitance magnification of the output capacitor is related to the proportional constants based on the proportion relationship. | 09-19-2013 |