4 results about "Boost controller" patented technology

A gate of the power transistor is driven by an input through a large resistor. When the boost pulse is activated, the boost switch closes, connecting the small resistor in parallel with the large resistor, thereby reducing the effective gate resistance during the boost pulse. The boost controller generates zero, one or two boost pulses for each input edge. For a rising edge when the transistor is conducted, when the steady-state current is lower than a threshold value, the enhancement controller does not generate an enhancement pulse; otherwise, an enhanced pulse is generated for each edge. The first oscillation peak is compared to a first range and the enhancement pulse width is adjusted until the peak is within the first range. When the oscillation speed is slower than the propagation delay, two enhanced pulses are generated for each input edge and the delay between the two pulses is adjusted until the second oscillation peak is within a second range.

A Bluetooth speaker includes a BOOST boost module, a power amplifier, and a charging module for charging a battery (BAT). The output voltage of the BOOST boost module supplies the power amplifier, which drives the speaker. The BOOST boost module includes a synchronous boost controller U8, and an inverter U9 is provided between the power amplifier and the synchronous boost controller. The power amplifier detects the audio input in real time and outputs a power supply voltage adjustment signal BOOST_PWM at pin 5 according to the desired signal swing. The synchronous boost controller U8 dynamically adjusts the output voltage at pin 18 based on the received voltage adjustment signal BOOST_PWM and the detected feedback voltage. The charging module includes a waterproof protection circuit for a Type-C interface, which uses an unused pin of the Type-C interface as a sensor, without occupying normal function pins or affecting the original performance of the interface.

1. The name of the design product: boost controller. 2. The use of the design product: for boosting low voltage to high voltage in fuel cell vehicle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A single-stage boost class-D amplifier is disclosed. The boost class-D amplifier includes a pulse width modulator, a boost controller coupled to the pulse width modulator, a driver coupled to the pulse width modulator and the boost controller, a system voltage source, an inductor coupled to the system voltage source, a first switch, a second switch, a third switch, a fourth switch, a first diode coupled between the third switch and a ground terminal, a second diode coupled between the fourth switch and the ground terminal, and a capacitor coupled between the first switch and the fourth switch. The pulse width modulator is configured to receive an input signal and generate a first modulated signal in response thereto. The boost controller is configured to receive the first modulated signal and generate a second modulated signal in response thereto. The driver is configured to receive the first modulated signal and the second modulated signal and generate a control signal in response thereto.