The current detection circuit includes a signal amplification branch, a first voltage branch, a second voltage branch and a first feedback circuit branch. The first feedback branch generates a feedback signal according to the first voltage generated by the first voltage branch, the second voltage and the first reference voltage generated by the second voltage branch. The signal amplification branch generates a first amplified voltage according to the first voltage and the feedback signal, and generates a second amplified voltage according to the second voltage and the feedback signal. The first voltage branch generates a first voltage and a first output voltage according to the first input voltage and the first amplified voltage. The second voltage branch generates a second voltage and a second output voltage according to the second input voltage and the second amplified voltage.

In a power supply system and a method for controlling the same, at least one battery from among a plurality of batteries is designated as a charging-side battery, and the remaining batteries are designated as discharging-side batteries. Next, the difference in current between the current flowing from the discharging-side batteries and the current flowing into the charging-side battery is determined on the basis of currents measured by a plurality of current measuring instruments. Next, the transformation rate of a voltage transformer connected to the discharging-side batteries is determined on the basis of the determined difference in current.

In a power supply system and a method for controlling the same, at least one battery from among a plurality of batteries is designated as a charging-side battery, and the remaining batteries are designated as discharging-side batteries. Next, the difference in current between the current flowing from the discharging-side batteries and the current flowing into the charging-side battery is determined on the basis of currents measured by a plurality of current measuring instruments. Next, the transformation rate of a voltage transformer connected to the discharging-side batteries is determined on the basis of the determined difference in current.

The present invention provides a measurement circuit and a measurement method. In the measurement circuit, a comparison unit is configured to compare a first preset value and a second preset value to obtain a voltage difference, an accumulation and subtraction unit is configured to perform counting according to a comparison result, and a control unit is configured to adjust the voltage difference between two compared voltage input terminals, thereby calculating a voltage resolution of the control unit, avoiding the impact of the actual error of the first constant current source and the unit resistor on the actual voltage resolution, and ensuring the measurement accuracy. In addition, an accurate to-be-measured voltage is calculated, and a measurement value of the to-be-measured voltage is corrected, to ensure the high measurement accuracy of the to-be-measured voltage and the output power.

The present invention provides a measurement circuit and a measurement method. In the measurement circuit, a comparison unit is configured to compare a first preset value and a second preset value to obtain a voltage difference, an accumulation and subtraction unit is configured to perform counting according to a comparison result, and a control unit is configured to adjust the voltage difference between two compared voltage input terminals, thereby calculating a voltage resolution of the control unit, avoiding the impact of the actual error of the first constant current source and the unit resistor on the actual voltage resolution, and ensuring the measurement accuracy. In addition, an accurate to-be-measured voltage is calculated, and a measurement value of the to-be-measured voltage is corrected, to ensure the high measurement accuracy of the to-be-measured voltage and the output power.

A method of detecting or monitoring process electrical charge produced during fabrication of an integrated circuit (IC) on a semiconductor wafer includes fabricating a process charge detection circuit on or in the semiconductor wafer, including: a victim isolation well, a gate oxide disposed on or in the victim isolation well, an aggressor isolation well electrically connected with the victim isolation well via the gate oxide, a victim antenna electrically connected with the victim isolation well and together with the victim isolation well defining a victim RC time constant, and an aggressor antenna electrically connected with the aggressor isolation well and together with the aggressor isolation well defining an aggressor RC time constant that is different from the victim RC time constant. Process charge is detected using the process charge detection circuit. The detecting comprises measuring an electrical parameter of the gate oxide.

A method of detecting or monitoring process electrical charge produced during fabrication of an integrated circuit (IC) on a semiconductor wafer includes fabricating a process charge detection circuit on or in the semiconductor wafer, including: a victim isolation well, a gate oxide disposed on or in the victim isolation well, an aggressor isolation well electrically connected with the victim isolation well via the gate oxide, a victim antenna electrically connected with the victim isolation well and together with the victim isolation well defining a victim RC time constant, and an aggressor antenna electrically connected with the aggressor isolation well and together with the aggressor isolation well defining an aggressor RC time constant that is different from the victim RC time constant. Process charge is detected using the process charge detection circuit. The detecting comprises measuring an electrical parameter of the gate oxide.

A detection circuit and an integrated circuit. The detection circuit is used for detecting the drift or an open circuit of a first capacitor (C1) on a filtered second power source terminal (220), and the second power source terminal (220) is suitable for acquiring a power source voltage from an unfiltered first power source terminal (210) by means of a first resistor (R1), and is suitable for being coupled to a reference electric potential terminal (230) by means of the first capacitor (C1). The detection circuit comprises a second resistor (R2) and a second capacitor (C2) that are connected in series and coupled between the first power source terminal (210) and the reference electric potential terminal (230), wherein the second resistor (R2) and the second capacitor (C2) have the same time constant as the first resistor (R1) and the first capacitor (C1).

A detection circuit and an integrated circuit. The detection circuit is used for detecting the drift or an open circuit of a first capacitor (C1) on a filtered second power source terminal (220), and the second power source terminal (220) is suitable for acquiring a power source voltage from an unfiltered first power source terminal (210) by means of a first resistor (R1), and is suitable for being coupled to a reference electric potential terminal (230) by means of the first capacitor (C1). The detection circuit comprises a second resistor (R2) and a second capacitor (C2) that are connected in series and coupled between the first power source terminal (210) and the reference electric potential terminal (230), wherein the second resistor (R2) and the second capacitor (C2) have the same time constant as the first resistor (R1) and the first capacitor (C1).

A voltage detection circuit for a switching converter having a switch and a magnetic element connected in series, where a first terminal of the switch and a first terminal of the magnetic element are connected to a common node, the voltage detection circuit including: an average circuit configured to receive a first voltage across the switch, and to generate a second voltage representing an average value of the first voltage; and where the second voltage represents a voltage between a second terminal of the switch and a second terminal of the magnetic element in a steady state of the switching converter.