3results about How to "Reduce latch-up" patented technology

The application discloses a kind of hybrid line DC fault ride-through control method, device and system, belong to flexible HVDC transmission technology.The DC fault ride-through control method of the application, first, the actual DC current corresponding to DC line in flexible HVDC transmission system is monitored, and the actual DC current in abnormal target line is obtained;Then according to the actual DC current corresponding to target line, the DC reference voltage corresponding to target line is adjusted to fault ride-through voltage reference value, to control the DC current corresponding to target line to be set value of fault ride-through;Finally, in the case where the actual DC voltage corresponding to target line satisfies preset recovery condition, the DC reference voltage corresponding to target line is restored to preset reference voltage value.The DC fault ride-through method of the application is fast in response speed, can also reduce the influence on output power, reduce power loss, improve the stability and reliability of flexible HVDC transmission system operation.

The present application relates to a composition for improving ovarian reserve function and regulating menstruation and application thereof, the composition comprising ginsenoside CK, ergothioneine, coenzyme Q10, pyrroloquinoline quinone, angelica extract and dendrobium officinale extract. The composition provided by the present application has synergistic effects of the components, can repair ovarian mitochondria, restore NAD + , protect granulosa cells, supply blood to uterus, nourish yin and moisten dryness in the reproductive system, improve ovarian reserve function in multiple dimensions, regulate menstrual cycle, menstrual period and menstrual volume.

The present disclosure provides an electrostatic protection circuit and a semiconductor chip. The electrostatic protection circuit is connected between a first voltage terminal and a second voltage terminal, and includes a detection circuit connected between the first voltage terminal and the second voltage terminal, for generating a transient control signal in response to an electrostatic pulse between the first voltage terminal and the second voltage terminal; a delay circuit connected to an output terminal of the detection circuit, for delaying or enhancing a driving capability of the transient control signal and outputting a delay signal; a discharge circuit connected between the first voltage terminal and the second voltage terminal; a control circuit connected to an output terminal of the delay circuit and a control terminal of the discharge circuit, for controlling the discharge circuit to discharge electrostatic according to the delay signal; and a reset circuit connected to the control terminal of the discharge circuit and the output terminal of the detection circuit, for resetting the potential of the control terminal of the discharge circuit according to the potential of the output terminal of the detection circuit after the electrostatic discharge ends.