Boosting input power
First Claim
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1. An electronics system, comprising:
- an input power management component to receive an input power, determine whether an input voltage of the input power is greater than an input voltage threshold, and in response to a determination that the input voltage is greater than the input voltage threshold, activate a boost enabled signal;
a boost component to receive the input power and the boost enabled signal from the input power management component, determine whether the boost enabled signal is activated, in response to a determination that the boost enabled signal is activated, generate a boost output voltage using the input voltage, compare the boost output voltage to a boost threshold, and if the boost output voltage is greater than the boost threshold, activate a boost OK signal; and
a step-down charging component to receive the boost output voltage and the boost OK signal from the boost component, determine whether the boost OK signal is activated, and in response to a determination that the boost OK signal is activated, decrease the boost output voltage to an output for charging a battery.
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Abstract
In one implementation, an input power management component receives an input power, and determines whether an input current and voltage satisfies predetermined thresholds. A boost component generates a boost output voltage using the input voltage if the input current satisfies a predetermined current threshold, and a step-down charging component converts the boost output voltage to a voltage for charging a battery and system power management.
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Citations
15 Claims
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1. An electronics system, comprising:
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an input power management component to receive an input power, determine whether an input voltage of the input power is greater than an input voltage threshold, and in response to a determination that the input voltage is greater than the input voltage threshold, activate a boost enabled signal; a boost component to receive the input power and the boost enabled signal from the input power management component, determine whether the boost enabled signal is activated, in response to a determination that the boost enabled signal is activated, generate a boost output voltage using the input voltage, compare the boost output voltage to a boost threshold, and if the boost output voltage is greater than the boost threshold, activate a boost OK signal; and a step-down charging component to receive the boost output voltage and the boost OK signal from the boost component, determine whether the boost OK signal is activated, and in response to a determination that the boost OK signal is activated, decrease the boost output voltage to an output for charging a battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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receiving an input power; detecting an input voltage; determining that the input voltage satisfies a first predetermined threshold; in response to the input voltage satisfying the first predetermined threshold, boosting the input power to generate a high voltage output; comparing the high voltage output to a boost threshold, and if the high voltage output is greater than the boost threshold, activating a boost OK signal; and in response to determining the boost OK signal is activated, stepping down the high voltage output to a charging output. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification