Abstract: A vehicle and an insulation monitoring circuit for vehicle battery, the insulation monitoring circuit acquiring power from the vehicle battery and comprising a voltage-to-frequency conversion circuit (11), an RC series circuit (12), a first peak sampling circuit (13), and an alarm trigger module (14); the voltage-to-frequency conversion circuit (11) outputs a low-frequency pulse signal and injects same via the RC series circuit (12) into a high-voltage system connected to the vehicle battery; the first peak sampling circuit (13) performs sampling on a voltage signal of a resistor rear end in the RC series circuit (12) and feeds back same to the voltage-to-frequency conversion circuit (11), such that the outputted low-frequency pulse signal is adapted to the vehicle battery; and the alarm trigger module (14) performs processing on the voltage signal of the resistor rear end in the RC series circuit (12) and outputs an alarm trigger signal.

Abstract: A bidirectional isolated communication circuit and method for a differential signal. The circuit comprises a first detection circuit used for receiving a first differential pair from a first direction, converting the first differential pair into a first level signal, and inhibiting common-mode interference; a second detection circuit used for receiving a second differential pair from a second direction, converting the second differential pair into a second level signal, and inhibiting common-mode interference; an isolation adjustment circuit used for being provided between the first detection circuit and the second detection circuit and performing communication isolation; and a watchdog circuit used for being awoken according to the first differential pair and/or the second differential pair, and enabling the bidirectional isolated communication circuit to enter from a small current working mode to a normal working mode to perform communication isolation.

Abstract: A bidirectional isolated communication circuit and method for a differential signal. The circuit comprises a first detection circuit used for receiving a first differential pair from a first direction, converting the first differential pair into a first level signal, and inhibiting common-mode interference; a second detection circuit used for receiving a second differential pair from a second direction, converting the second differential pair into a second level signal, and inhibiting common-mode interference; an isolation adjustment circuit used for being provided between the first detection circuit and the second detection circuit and performing communication isolation; and a watchdog circuit used for being awoken according to the first differential pair and/or the second differential pair, and enabling the bidirectional isolated communication circuit to enter from a small current working mode to a normal working mode to perform communication isolation.

Abstract: The present invention provides a Chinese drug composition for the treatment of peptic ulcer comprising oil of Chenopodium ambrosiodes and oil of Adina pilulifera in a ratio of 18-70:0.5-5 by weight and preparation thereof. The Chinese drug composition possesses therapeutic effect on peptic ulcer to mammal animals including human, and intensely inhibits pyloric spirillum.