VOLTAGE CONTROL USING RECTIFYING CIRCUITRY
First Claim
1. An apparatus comprising:
- an antenna;
a capacitor; and
voltage control circuitry including;
a first rectifying circuit configured and arranged to rectify a wireless signal received by the antenna and to provide the rectified signal to an output load;
a second rectifying circuit configured and arranged to rectify the wireless signal received by the antenna and to provide the rectified signal to the capacitor; and
a control logic circuit configured and arranged to regulate an output voltage provided to the output load relative to a threshold voltage value, and, for each rectifying cycle,determine whether the output voltage is above the threshold voltage value or above the threshold voltage value;
enable, in response to determining that the output voltage is below the threshold voltage value, the first rectifying circuit to provide the rectified signal to the output load; and
enable, in response to determining that the output voltage is above the threshold voltage value, the second rectifying circuit to provide the rectified signal to the capacitor.
1 Assignment
0 Petitions
Accused Products
Abstract
Aspects of the present disclosure are directed to methods, apparatuses and systems involving voltage control using rectifying circuitry. According to an example embodiment, an apparatus includes an antenna, a capacitor, and voltage control circuitry. The voltage control circuitry includes a first rectifying circuit to rectify a wireless signal and provide the rectified signal to an output load, a second rectifying circuit to rectify the wireless signal and provide the rectified signal to the capacitor, and a control logic circuit to regulate an output voltage provided to the output load relative to a threshold value. For each rectifying cycle, the control logic circuit determines whether the output voltage is above the threshold value, enables, in response to determining that the output voltage is below the threshold value, the first rectifying circuit, and enables, in response to determining that the output voltage is above the threshold value, the second rectifying circuit.
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Citations
20 Claims
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1. An apparatus comprising:
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an antenna; a capacitor; and voltage control circuitry including; a first rectifying circuit configured and arranged to rectify a wireless signal received by the antenna and to provide the rectified signal to an output load; a second rectifying circuit configured and arranged to rectify the wireless signal received by the antenna and to provide the rectified signal to the capacitor; and a control logic circuit configured and arranged to regulate an output voltage provided to the output load relative to a threshold voltage value, and, for each rectifying cycle, determine whether the output voltage is above the threshold voltage value or above the threshold voltage value; enable, in response to determining that the output voltage is below the threshold voltage value, the first rectifying circuit to provide the rectified signal to the output load; and enable, in response to determining that the output voltage is above the threshold voltage value, the second rectifying circuit to provide the rectified signal to the capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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an antenna; a capacitor; and voltage regulator circuitry including; a first rectifying circuit configured and arranged to rectify a wireless signal received by the antenna and to provide the rectified signal to an output load; a second rectifying circuit configured and arranged to rectify the wireless signal received by the antenna and to provide the rectified signal to the capacitor; and a control logic circuit configured and arranged to regulate an output voltage provided to the output load relative to a threshold voltage value, and, for each rectifying cycle associated with a half-wave of the wireless signal, compare the output voltage to a threshold voltage value; in response to the voltage being below the threshold voltage value, enable one of a first path and a second path of the first rectifying circuit to provide the rectified signal to the output load; and in response the voltage being above the threshold voltage value, enable one of a third path and a fourth path of the second rectifying circuit to provide the rectified signal to the capacitor. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus comprising:
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an antenna configured and arranged to receive wireless signals; a capacitor configured and arranged to accumulate voltage; and voltage control circuitry including; a first rectifying circuit configured and arranged to rectify a wireless signal received by the antenna and to provide the rectified signal to an output load, the first rectifying circuit including; a first rectifying path through a first transistor, and configured and arranged to provide the rectified signal to the output load; and a second rectifying path through a second transistor, and configured and arranged to provide the rectified signal to an output load; a second rectifying circuit configured and arranged to rectify the wireless signal and to provide the rectified signal to the capacitor, the second rectifying circuit including; a third rectifying path through a third transistor, and configured and arranged to provide the rectified signal to the capacitor; and a fourth rectifying path through a fourth transistor, and configured and arranged to provide the rectified signal to the capacitor; and a control logic circuit configured and arranged to regulate an output voltage provided to the output load relative to a threshold voltage value, and for each rectifying cycle associated with a half-wave of the wireless signal, determine if the output voltage is below the threshold voltage value; enable, in response to the output voltage being below the threshold voltage value, one of the first and second rectifying paths to provide the rectified signal to the output load; and enable, in response to the output voltage being above the threshold voltage value, one of the third and fourth rectifying paths to provide the rectified signal to the capacitor. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification