Abstract: The present invention provides a power controller, an asymmetric half-bridge power supply, and a control method, which are related to the field of electronic technology. The asymmetric half-bridge includes a charging switch and a resonant switch that constitute a half-bridge. The charging switch and the resonant switch are used to control the resonant circuit, which includes a transformer and a resonant capacitor. The asymmetric half-bridge power supply is used to provide an output voltage and to supply power to a load. The control method includes: providing a compensation signal based on the output voltage; turning on the charging switch for a charging switch turn-on duration; turning on the resonant switch for a resonant switch turn-on duration; and adjusting the resonant switch turn-on duration based on the compensation signal, so that the resonant switch turn-on duration increases as the load decreases.

Abstract: A switch-mode power supply is used to provide an output voltage and includes an inductor and a power switch, where the power switch is used to control the current flowing through the inductor. A control method for the switch-mode power supply includes: providing a compensation signal controlled by the output voltage; providing a stable compensation signal for the low-frequency component of the compensation signal based on the compensation signal; providing a mixed operation mode, in which the switch-mode power supply alternately operates during a switching operation period and an skip period, the power switch opens at least once during the switching operation period, and the power switch is closed during the skip period; based on the difference between the compensation signal and the stable compensation signal, ending one of the switching operation period and skip period, and starting another one of the switching operation period and skip period.

Abstract: In an embodiment, an interposer has a first side, a first integrated circuit device attached to the first side of the interposer with a first set of conductive connectors, each of the first set of conductive connectors having a first height, a first die package attached to the first side of the interposer with a second set of conductive connectors, the second set of conductive connectors including a first conductive connector and a second conductive connector, the first conductive connector having a second height, the second conductive connector having a third height, the third height being different than the second height, a first dummy conductive connector being between the first side of the interposer and the first die package, an underfill disposed beneath the first integrated circuit device and the first die package, and an encapsulant disposed around the first integrated circuit device and the first die package.

Abstract: A synchronized rectification control method for use in a flyback converter is provided. The flyback converter includes a transformer including a secondary winding, a synchronous rectifier switch and a synchronous rectifier controller. The synchronous rectifier switch is coupled to the secondary winding and the synchronous rectifier controller, and is used to output a voltage difference signal and receive a control voltage. The method includes the synchronous rectifier controller detecting a rapid falling edge of the voltage difference signal to generate a rapid falling edge signal, generating an envelope signal according to the voltage difference signal, generating a time length control signal according to the voltage difference signal and the envelope signal, generating a blanking time signal according to the voltage difference signal and the time length control signal, and performing a logic operation on the blanking time signal and the rapid falling edge signal to generate the control voltage.

Abstract: A controller and a control method for an asymmetric half-bridge power supply are disclosed. The asymmetric half-bridge power supply includes a first arm switch and a second arm switch forming a half-bridge, and a resonant circuit connected to the half-bridge. The method includes providing a duration parameter reflecting a second turn-on time of the second arm switch in a earlier switching cycle; providing a control signal to turn on the first arm switch for a first turn-on time in a later switching cycle; detecting whether the first arm switch has performed ZVS in response to a signal edge of the control signal to adjust the duration parameter accordingly; determining the second turn-on time of the second arm switch in the later switching cycle based on the duration parameter; and turning on the second arm switch for the second turn-on time after the first turn-on time in the later switching cycle.

Abstract: A package assembly includes a package substrate including a first die that includes a photonic integrated circuit, a second die located on the first die, the second die including an electronic integrated circuit electrically connected to the photonic integrated circuit, and an interposer module on the package substrate, at least a portion of the interposer module being located on the first die and electrically connected to the photonic integrated circuit.

Abstract: A package assembly includes a package substrate including a first die that includes a photonic integrated circuit, a second die located on the first die, the second die including an electronic integrated circuit electrically connected to the photonic integrated circuit, and an interposer module on the package substrate, at least a portion of the interposer module being located on the first die and electrically connected to the photonic integrated circuit.

Abstract: An asymmetrical half-bridge converter has an auxiliary winding, a main switch and a resonant switch. The auxiliary winding generates a feedback voltage. A controller turns on the main switch for a first ON duration, turns off the main switch and the resonant switch for a first OFF duration after the first ON duration, turns on the resonant switch for a second ON duration after the first OFF duration, turns off the main switch and the resonant switch for a second OFF duration after the second ON duration, turns on the resonant switch for a third ON duration after the second OFF duration, and turns off the main switch and the resonant switch for a third OFF duration after the third ON duration. The length of the second ON duration is a fixed ratio of a discharge period, and the fixed ratio is less than 1.

Abstract: A control method is disclosed for an asymmetric half-bridge power supply having a resonant circuit, a first switch, a second switch, and an assisting switch. The resonant circuit includes a transformer and a resonance capacitor. The transformer has a primary winding connected to the resonance capacitor and an auxiliary winding connected to the assisting switch. Within a switching cycle, the first switch is turned on for a first ON time to increase an exciting current of the transformer. After the first ON time, the second switch is turned on for a second ON time to decrease the exciting current. Whether a discharge duration of the transformer ends is detected. The assisting switch is turned ON after the end of the discharge duration, making the exciting current negative, so as to assist the first switch achieving ZVS.

Abstract: A control circuit of a power conversion circuit includes an energy storing circuit coupled between an AC/DC rectifier circuit and a DC/DC conversion circuit. When a first condition “the absolute peak value of the input voltage of the AC/DC rectifying circuit is smaller than a reference voltage” is satisfied, discharge current is provided for lowering the voltage on the first output end of the AC/DC rectifying circuit. When the first condition and a second condition “the discharge current is smaller than reference current” are both satisfied, a switch of the energy storing circuit is turned on. When the first condition and the second are not both satisfied, the switch of the energy storing circuit is turned off.

Abstract: A synchronous rectification controller is coupled to a rectification switch at a secondary-side of a power converter, and the rectification switch includes a rectification switch control, first, and second terminal. The synchronous rectification controller includes a driving signal terminal, a power receiving terminal, a transistor, and a start-up control module. The power receiving terminal receives an operating voltage, and when the operating voltage is higher than an operating voltage threshold, the synchronous rectification controller can output a driving signal for driving the rectification switch through the driving signal terminal. When the operating voltage is lower than the operating voltage threshold, the start-up control module limits a cross voltage between the rectification switch control terminal and the rectification switch second terminal to be lower than a first threshold voltage of the rectification switch by turning on the transistor to prevent conduction of the rectification switch.

Abstract: In an embodiment, an interposer has a first side, a first integrated circuit device attached to the first side of the interposer with a first set of conductive connectors, each of the first set of conductive connectors having a first height, a first die package attached to the first side of the interposer with a second set of conductive connectors, the second set of conductive connectors including a first conductive connector and a second conductive connector, the first conductive connector having a second height, the second conductive connector having a third height, the third height being different than the second height, a first dummy conductive connector being between the first side of the interposer and the first die package, an underfill disposed beneath the first integrated circuit device and the first die package, and an encapsulant disposed around the first integrated circuit device and the first die package.

Abstract: A power conversion apparatus supplies power to a load, and the power conversion apparatus includes a power switch, a transformer, and a control module. The control module alternately turns on and turns off a power switch of the power conversion apparatus to convert an input voltage into an output voltage through the transformer. When the power switch is turned off, a primary side of the transformer generates a resonance voltage. The control module sets a predetermined counting threshold according to the output voltage, and sets a blanking time interval according to a feedback signal related to the load. After the blanking time interval ends, the control module counts a number of an oscillation turning point generated by the resonance voltage due to the oscillation of the resonance voltage. When the number reaches the predetermined counting threshold, the control module turns on the power switch.

Abstract: In an embodiment, an interposer has a first side, a first integrated circuit device attached to the first side of the interposer with a first set of conductive connectors, each of the first set of conductive connectors having a first height, a first die package attached to the first side of the interposer with a second set of conductive connectors, the second set of conductive connectors including a first conductive connector and a second conductive connector, the first conductive connector having a second height, the second conductive connector having a third height, the third height being different than the second height, a first dummy conductive connector being between the first side of the interposer and the first die package, an underfill disposed beneath the first integrated circuit device and the first die package, and an encapsulant disposed around the first integrated circuit device and the first die package.

Abstract: A synchronized rectification control method for use in a flyback converter is provided. The flyback converter includes a transformer including a secondary winding, a synchronous rectifier switch and a synchronous rectifier controller. The synchronous rectifier switch is coupled to the secondary winding and the synchronous rectifier controller, and is used to output a voltage difference signal and receive a control voltage. The method includes the synchronous rectifier controller detecting a rapid falling edge of the voltage difference signal to generate a rapid falling edge signal, generating an envelope signal according to the voltage difference signal, generating a time length control signal according to the voltage difference signal and the envelope signal, generating a blanking time signal according to the voltage difference signal and the time length control signal, and performing a logic operation on the blanking time signal and the rapid falling edge signal to generate the control voltage.

Abstract: A power controller with short-circuit protection is disclosed to control a power switch, which is connected in series with a current-sense resistor and an inductive device between two power lines. The current-sense resistor provides a current-sense signal. The power controller includes a PWM signal generator and a short-circuit protection circuit. The PWM signal generator generates a PWM signal to the power switch to create switching cycles, each consisting of an ON time and an OFF time. The short-circuit protection circuit has a high-pass filter and a condition detector. The high-pass filter high-pass filters the current-sense signal to provide a filtered signal to the condition detector, which determines whether the filtered signal fits a predetermined condition during the ON time to generate a short-circuit protection signal and to prevent the power switch being turned on.

Abstract: A synchronous rectifier controller for controlling a rectifier switch is disclosed. The synchronous rectifier controller includes a fully-ON controller and a regulator. Capable of being triggered by a channel voltage of the rectifier switch, the fully-ON controller turns the rectifier switch fully ON for a fully-ON time in view of a predetermined condition. The regulator, disabled during the fully-ON time and enabled after the fully-ON time, turns the rectifier switch ON to regulate the channel voltage within a predetermined voltage range.

Abstract: A package assembly includes a package substrate including a first die that includes a photonic integrated circuit, a second die located on the first die, the second die including an electronic integrated circuit electrically connected to the photonic integrated circuit, and an interposer module on the package substrate, at least a portion of the interposer module being located on the first die and electrically connected to the photonic integrated circuit.

Abstract: A filter capacitor discharge circuit includes a high-voltage terminal, a signal preparation circuit, a low-pass filter, a voltage level detector, a timer unit, and a switch unit. The signal preparation circuit receives a detection signal corresponding to an AC voltage from the high-voltage terminal, and generates a voltage signal according to the detection signal. The low-pass filter provides a filtered signal according to the voltage signal. The voltage level detector checks whether a voltage difference between the voltage signal and the filtered signal is less than a predetermined value. When the voltage difference is less than the predetermined value, the timer unit performs time calculation to accumulate a timing result. When the timing result exceeds a predetermined time, the switch unit is turned on so that the firster capacitor is discharged through the switch unit.

Abstract: In an embodiment, an interposer has a first side, a first integrated circuit device attached to the first side of the interposer with a first set of conductive connectors, each of the first set of conductive connectors having a first height, a first die package attached to the first side of the interposer with a second set of conductive connectors, the second set of conductive connectors including a first conductive connector and a second conductive connector, the first conductive connector having a second height, the second conductive connector having a third height, the third height being different than the second height, a first dummy conductive connector being between the first side of the interposer and the first die package, an underfill disposed beneath the first integrated circuit device and the first die package, and an encapsulant disposed around the first integrated circuit device and the first die package.