The present disclosure provides an electronic circuit having one reference current terminal arranged to connect to a reference current generator, an MOS current mirror stage, an MOS push-pull amplifier stage operatively coupled to the current mirror stage and the current mode amplifier stage.

The present disclosure provides an electronic circuit having one reference current terminal arranged to connect to a reference current generator, an MOS current mirror stage, an MOS push-pull amplifier stage operatively coupled to the current mirror stage and the current mode amplifier stage.

The invention discloses a method and a system for correction of the junction temperatures of an IGBT module in a photovoltaic inverter. The method includes: constructing an electrothermal coupling model of an IGBT model based on a photovoltaic inverter topology, a light radiation intensity, and an ambient temperature; selecting an IGBT collector-emitter on-state voltage drop as an aging parameter and designing an on-state voltage drop sampling circuit to ensure measurement accuracy; constructing an aging database for IGBT modules in different aging stages based on large current and small current injection methods; comparing a junction temperature value output by the electrothermal coupling model with the calibrated junction temperature value and calibrating an aging process coefficient of an electrothermal coupling model correction formula; comparing an IGBT aging monitoring value with the aging threshold to determine the aging process and selecting a corresponding aging process coefficient to ensure accuracy of junction temperature data.

A synchronous rectifier includes: an integrator configured to integrate a voltage across a secondary side winding of a transformer over an integral period having an expected zero integral value; a first comparator configured to detect an end of a demagnetization phase of the secondary side winding based on diode detection; and a digital circuit configured to adjust a channel gain of the synchronous rectifier based on an integration error at the end of the integral period, the integration error corresponding to the difference between the integrated voltage at the end of the integral period and the expected zero integral. Corresponding methods of gain tuning and a power converter are also described.

A power control integrated circuit (IC) chip can include a direct current (DC)-DC converter that outputs a switching voltage in response to a switching output enable signal. The power control IC chip can also include an inductor detect circuit that detects whether an inductor is conductively coupled to the DC-DC converter and a powered circuit component in response to an inductor detect signal. The power control IC chip can further include control logic that (i) controls the inductor detect signal based on an enable DC-DC signal and (ii) controls the switching output enable signal provided to the DC-DC converter and a linear output disable signal provided to a linear regulator based on a signal from the inductor detect circuit indicating whether the inductor is conductively coupled to the DC-DC converter and the powered circuit component.

A power control integrated circuit (IC) chip can include a direct current (DC)-DC converter that outputs a switching voltage in response to a switching output enable signal. The power control IC chip can also include an inductor detect circuit that detects whether an inductor is conductively coupled to the DC-DC converter and a powered circuit component in response to an inductor detect signal. The power control IC chip can further include control logic that (i) controls the inductor detect signal based on an enable DC-DC signal and (ii) controls the switching output enable signal provided to the DC-DC converter and a linear output disable signal provided to a linear regulator based on a signal from the inductor detect circuit indicating whether the inductor is conductively coupled to the DC-DC converter and the powered circuit component.

A voltage regulator is provided wherein electricity flows through a second transistor in an operating state in which a control unit) applies an operating voltage to a base of the second transistor. A Zener diode sets, in the operating state, a voltage of a second conductive path to a voltage corresponding to a voltage across the Zener diode. A current corresponding to an addition value obtained by adding a value of a current flowing through a second resistor portion in the operating state, a value of a current flowing through a third resistor portion in the operating state, and a value of a current flowing through the Zener diode in the operating state flows through a ground-side resistor portion. A control unit stops the output of the operating voltage when a voltage of the second conductive path is lower than or equal to a threshold value.

One or more embodiments relate to a multi-phase voltage regulator with AVP or droop configured to implement a non-linear load line. According to certain aspects, the non-linear load line can have a non-linear or zero slope in a first current/voltage region and a constant non-zero slope in second current/voltage region. In embodiments, the non-linear or zero slope region can specify that for any value of output current in that region, the output voltage will be the same predetermined value. The non-zero slope region can specify that for any value of the output current in that region, output current will be multiplied by a constant non-zero droop resistance value.

One or more embodiments relate to a multi-phase voltage regulator with AVP or droop configured to implement a non-linear load line. According to certain aspects, the non-linear load line can have a non-linear or zero slope in a first current/voltage region and a constant non-zero slope in second current/voltage region. In embodiments, the non-linear or zero slope region can specify that for any value of output current in that region, the output voltage will be the same predetermined value. The non-zero slope region can specify that for any value of the output current in that region, output current will be multiplied by a constant non-zero droop resistance value.

A supply circuit has a first and a second terminal for connecting an accumulator, a third and a fourth terminal for connecting at least one battery, and an output terminal. A voltage regulator is connected to the first terminal on the input side and to a fifth terminal on the output side. An undervoltage detection circuit is adapted to activate the voltage regulator when a voltage at the first terminal is greater than a threshold voltage. A reverse polarity protection device is coupled between the third terminal and the output terminal. A blocking diode is coupled between the fifth terminal and the output terminal.