A power output control module for power distribution is installed inside a power distributor that is connected to an AC power source and multiple electronic devices to control the AC power outputted to the electronic devices. The power output control module continuously detects whether the AC power inputted is normal. When the AC power source is disconnected by accident, a latch relay is controlled to switch to be open, so that the AC power source and the electronic devices are disconnected. This prevents the instantaneous surge current from damaging the electronic devices when the AC power source resumes its normal output and also increases the safety and reliability of electronic devices.

A power output control module for power distribution is installed inside a power distributor that is connected to an AC power source and multiple electronic devices to control the AC power outputted to the electronic devices. The power output control module continuously detects whether the AC power inputted is normal. When the AC power source is disconnected by accident, a latch relay is controlled to switch to be open, so that the AC power source and the electronic devices are disconnected. This prevents the instantaneous surge current from damaging the electronic devices when the AC power source resumes its normal output and also increases the safety and reliability of electronic devices.

An electronic circuit includes a switched-mode power supply powering a first load via a first linear voltage regulator. The first regulator includes a transistor. The substrate and the gate of the transistor are capable of being coupled to a node of application of a power supply voltage. A method of operating the circuit is also disclosed.

An electronic circuit includes a switched-mode power supply powering a first load via a first linear voltage regulator. The first regulator includes a transistor. The substrate and the gate of the transistor are capable of being coupled to a node of application of a power supply voltage. A method of operating the circuit is also disclosed.

The invention provides a power conversion device, including: a voltage conversion stage, including a primary side for receiving a rectified voltage and a secondary side for generating a rectified voltage according to the rectified voltage, wherein the primary side includes a primary side switch; a switch control circuit having a startup status and a normal operation status, the switch control circuit being configured to operably provide a control signal to a control terminal of the primary side switch; a startup circuit, providing a current to the control terminal when the switch control circuit is in the startup status, to at least partially conduct the primary side switch; and a slow soft-startup circuit, wherein when the switch control circuit is in the startup status and the output voltage does not reach a predetermined voltage in a first predetermined time period, the slow soft-startup circuit reduces a total current quantity supplied to the control terminal in a second predetermined time period which is after the first predetermined time period.

The invention provides a power conversion device, including: a voltage conversion stage, including a primary side for receiving a rectified voltage and a secondary side for generating a rectified voltage according to the rectified voltage, wherein the primary side includes a primary side switch; a switch control circuit having a startup status and a normal operation status, the switch control circuit being configured to operably provide a control signal to a control terminal of the primary side switch; a startup circuit, providing a current to the control terminal when the switch control circuit is in the startup status, to at least partially conduct the primary side switch; and a slow soft-startup circuit, wherein when the switch control circuit is in the startup status and the output voltage does not reach a predetermined voltage in a first predetermined time period, the slow soft-startup circuit reduces a total current quantity supplied to the control terminal in a second predetermined time period which is after the first predetermined time period.

A power supply system includes at least one power supply module and at least one redundant power supply module. A power supply module may include a charging resistor in parallel with an OR-ing device to keep all filter capacitors charged as long as at least one power supply module remains operational. This may avoid current spikes at turn on and may enable the redundant module to turn on without using soft start.

A solar panel is constructed by electrically connecting one or more banks of solar cells in series, wherein each cell in each bank is electrically connected in series. In some aspects the cells are a quarter of typical full size cells in the direction of current flow. A panel may comprise banks of differing cell counts. Bypass diodes are not used.

This disclosure describes a gate driver with voltage boosting capabilities. In some embodiments, the gate driver may comprise a charge pump that includes capacitor(s) and switch(es). Responsive a logic low input signal, the gate driver may bypass the capacitor(s) to allow the input digital signal to drive the gating signal directly. Conversely, responsive to a logic high input signal, the gate driver may couple the capacitor(s) in series with the input digital signal to generate a boosted gating signal. In some embodiments, the gate driver may comprise an inductor-capacitor resonant circuit to create a doubled output gating signal with respect to the input digital signal. In some embodiments, the resonant gate driver may include an additional voltage boosting capability that can be selectively enabled to compensate for a voltage drop during the signal transfer from the input to the output.

A power source device includes a control substrate and a power source substrate. The control substrate has a modulation signal generating integrated circuit that outputs a modulation signal modulated to generate an AC voltage. The power source substrate generates a high AC voltage by demodulating the modulation signal which is output from the modulation signal generating integrated circuit of the control substrate.