摘要:
A power management device of a touchable control system includes a boost circuit boosting an output voltage according to an input voltage, a controlling signal for ballasting charging, and a controlling signal for boosting charging, a detection circuit detecting a predetermined value of the output voltage, a modulation circuit, and a loading circuit. The modulation circuit separately modulates the output voltage by the controlling signal for ballasting charging after the output voltage reaches the predetermined value and by the controlling signal for boosting charging before the output voltage reaches the predetermined value according to the detecting of the detection circuit. The loading circuit receives the reached predetermined value of the output voltage according to the modulation of the modulation circuit, wherein the controlling signal for boosting charging modulating the output voltage is more rapid than the controlling signal for ballasting charging modulating the output voltage.
摘要:
The present invention provides an integration and analog to digital conversion circuit sharing common capacitors. The circuit comprises a capacitor array module, an integration circuit, and an analog to digital conversion (ADC) logic. The capacitor array module has a plurality of capacitors. The integration circuit is configured to integrate an analog signal by the capacitor array module. The ADC logic is configured to convert the output of the capacitor array module to a digital signal.
摘要:
The invention, upon receiving an input signal, sums the absolute values of the difference of each pair of values adjacent to each other within a series of detected signal values to suppress the interference of low-frequency noise. Furthermore, the invention sums the absolute values of the moving averages of the differences of each pair of values adjacent to each other within a series of detected signal values to suppress both the interference of low-frequency noise and the interference of high-frequency noise. No synchronization with the input signal is necessary. The detection can be started at any phase of the input signal.
摘要:
A charge pump that uses a control unit of a chip to adjust the on/off status of power switches and capacitor boost switches of a change-over switch set, enabling input voltage to be boosted by selected capacitors to the desired voltage level subject to conduction and cutoff of selected transistors, and therefore a predetermined voltage level of output voltage can be provided to an internal working circuit of an electronic apparatus without changing the circuit layout of the chip and the package substrate that is packaged on the chip, and thus, the chip and the package substrate simply need to be verified once, eliminating further verification procedure and time prior to vending and saving much the cost.
摘要:
A power management device of a touchable control system includes a boost circuit, a storage circuit, a detection circuit and a loading circuit. The boost circuit has an output terminal and generates an output voltage. The storage circuit electrically connects to the output terminal of the boost circuit and stores the output voltage. The detection circuit electrically connects to the storage circuit so as to detect the output voltage. The loading circuit electrically connects or disconnects to the output terminal of the boost circuit according to a predetermined value of the output voltage.
摘要:
A signal sensing circuit converts a received current input into a voltage output and provides the voltage output to an analog-to-digital converter (ADC) to generate a digital output signal. The voltage output is associated with a circuit having a first reference impedance, and a reference voltage of the ADC is associated with a circuit having a second reference impedance, wherein the circuit having the first reference impedance and the circuit having the second reference impedance are formed by the same material, so that the ratio between the changes in the current input and the changes in the value of the digital output signal is a constant.
摘要:
The present invention provides an integration and analog to digital conversion circuit sharing common capacitors. The circuit comprises a first capacitor array module, a second capacitor module, an integration circuit, an analog to digital conversion (ADC) logic. The first capacitor array module has a plurality of capacitors. The second capacitor array module has a plurality of capacitors. The integration circuit is configured to integrate an analog signal by said first or said second capacitor array module. The ADC logic is configured to convert the output of said first or said second capacitor array module to a digital signal. The ADC logic performs conversion by said first capacitor array module while said integration circuit performs integration by said second capacitor array module, and said ADC logic performs conversion by said second capacitor array module while said integration circuit performs integration by said first capacitor array module.