Abstract: Disclosed area channel circuit and an electronic device, including a power channel switch, a signal channel switch, a control module, and a comparison module. The power channel switch is connected between a circuit input end and a first circuit output end, and the signal channel switch is connected between the circuit input end and a second circuit output end. The comparison module is connected to the circuit input end and is configured to compare an input voltage with a specified voltage threshold, including a first voltage threshold, and feedback corresponding comparison results to the control module. The control module is configured to turn on the signal channel switch and turn off the power channel switch when the input voltage is lower than the first voltage threshold, and to turn on the signal channel switch when the input voltage is higher than the first voltage threshold.

Abstract: A level conversion circuit includes a first pin, a second pin, a target pin, a core module and a switch. A first terminal of the switch is connected to the first pin, a second terminal of the switch is connected to the second pin, and the core module is connected to the target pin, the second pin and a control terminal of the switch respectively. The core module is configured to: when a voltage connected to the target pin is at a first reference high level, control the switch to turn on to transmit a signal with a specified voltage amplitude, and pull the first pin to the first reference high level and the second pin to a second reference high level based on the first reference high level; where the first reference high level is higher than the second reference high level.

Abstract: A method for crystallization of ?-ammonium tetramolybdate includes: performing a stepwise pH-adjusting treatment of an ammonium molybdate solution via zoning to obtain the ?-ammonium tetramolybdate. When feeding the ammonium molybdate solution into a reaction system from a first zone and then into second to sixth zones successively, pH1 of a resultant solution in the first zone is 7.0-6.0; pH2 of a resultant solution in the second zone is less than 6 and greater than or equal to 4; pH3 of a resultant solution in the third zone is less than 4 and greater than or equal to 2.5; pH4 of a crystallized slurry in the fourth zone is less than 2.5 and greater than or equal to 1; pH5 of a crystallized slurry in the fifth zone is 2.5-4.0; and pH6 of a crystallized slurry in the sixth zone is less than 2.5 and greater than or equal to 2.0.

Abstract: Disclosed area channel circuit and an electronic device, including a power channel switch, a signal channel switch, a control module, and a comparison module. The power channel switch is connected between a circuit input end and a first circuit output end, and the signal channel switch is connected between the circuit input end and a second circuit output end. The comparison module is connected to the circuit input end and is configured to compare an input voltage with a specified voltage threshold, including a first voltage threshold, and feedback corresponding comparison results to the control module. The control module is configured to turn on the signal channel switch and turn off the power channel switch when the input voltage is lower than the first voltage threshold, and to turn on the signal channel switch when the input voltage is higher than the first voltage threshold.

Abstract: A method for crystallization of ?-ammonium tetramolybdate includes: performing a stepwise pH-adjusting treatment of an ammonium molybdate solution via zoning to obtain the ?-ammonium tetramolybdate. When feeding the ammonium molybdate solution into a reaction system from a first zone and then into second to sixth zones successively, pH1 of a resultant solution in the first zone is 7.0-6.0; pH2 of a resultant solution in the second zone is less than 6 and greater than or equal to 4; pH3 of a resultant solution in the third zone is less than 4 and greater than or equal to 2.5; pH4 of a crystallized slurry in the fourth zone is less than 2.5 and greater than or equal to 1; pH5 of a crystallized slurry in the fifth zone is 2.5-4.0; and pH6 of a crystallized slurry in the sixth zone is less than 2.5 and greater than or equal to 2.0.

Abstract: A signal transmission circuit includes N signal transmission paths, a boost control module and a first feedback module; the signal transmission path includes two signal transmission terminals and a path switch connected between the two signal transmission terminals; the first feedback module is configured to feed back a voltage to be superimposed to the boost control module, the voltage to be superimposed is matched to the maximum voltage among voltages of the M signal transmission terminals; the boost control module is configured to boost the input voltage and output a target signal through a third terminal of the boost control module to drive the path switch into a first state by using the target signal when the input voltage is at a high level, where a voltage of the target signal is adapted to the sum of a boosted voltage of the input voltage and the voltage to be superimposed.

Abstract: A level conversion circuit includes a first pin, a second pin, a target pin, a core module and a switch. A first terminal of the switch is connected to the first pin, a second terminal of the switch is connected to the second pin, and the core module is connected to the target pin, the second pin and a control terminal of the switch respectively. The core module is configured to: when a voltage connected to the target pin is at a first reference high level, control the switch to turn on to transmit a signal with a specified voltage amplitude, and pull the first pin to the first reference high level and the second pin to a second reference high level based on the first reference high level; where the first reference high level is higher than the second reference high level.

Abstract: A system for adjusting transmission oil temperature and a heat exchange assembly are provided. The heat exchange assembly includes a heat exchange core, a valve assembly, an adapter base, and a mounting plate fixed with the heat exchange core. The valve assembly is arranged in or partially located in a second passage of the heat exchange core. The valve assembly has a first valve port and a first notch. The heat exchange core further includes a through passage in communication with a fourth port. When a first valve port is opened, a third port is in communication with the fourth port through a first passage, the second passage, the first notch and the first valve port in turn. When the first valve port is closed, the third port is in communication with a fifth port through the first passage, the second passage and the first notch in turn.

Abstract: A thermostatic valve, including: a pressure relief ring capable of moving up and down and disposed in a valve body cavity. In normal conditions, the pressure relief ring is abutted against the outer edge of a first valve seat via a spring. An internal channel capable of being opened or closed via up and down movement of the pressure relief ring is further provided in the valve body cavity; when the pressure of a fluid in the thermostatic valve is excessive, the fluid can drive the pressure relief ring to compress the spring, such that the internal channel is in communication with a third interface to realize simultaneous communication with a first flow channel and a third flow channel.

Abstract: A thermostatic valve includes a valve body with a cavity provided therein, an end cover assembly, and a thermal actuator and at least one spring that are mounted in the cavity. The valve body is provided with at least three ports including a first port, a second port and a third port. The thermal actuator includes a valve rod and a main body. The spring includes a first spring. The cavity includes a first cavity and a second cavity, and the second cavity is away from the end cover assembly. The first port is in communication with the first cavity, and the third port is in communication with the second cavity. The first spring is partially or completely located in the second cavity. The thermostatic valve further includes a guide fitting part. The thermostatic valve has a simple structure, and the operation thereof is more stable and reliable.

Abstract: Disclosed is a thermostatic valve, including: a pressure relief ring capable of moving up and down and disposed in a valve body cavity. In normal conditions, the pressure relief ring is abutted against the outer edge of a first valve seat by means of a spring. An internal channel capable of being opened or closed by means of up and down movement of the pressure relief ring is further provided in the valve body cavity; when the pressure of a fluid in the thermostatic valve is excessive, the fluid can drive the pressure relief ring to compress the spring, such that the internal channel is in communication with a third interface to realize simultaneous communication with a first flow channel and a third flow channel, and thus damages caused by excessive pressure of the fluid in the temperature regulating valve can be prevented.

Abstract: A thermostatic valve includes a valve body with a cavity provided therein, an end cover assembly, and a thermal actuator and at least one spring that are mounted in the cavity. The valve body is provided with at least three ports including a first port, a second port and a third port. The thermal actuator includes a valve rod and a main body. The spring includes a first spring. The cavity includes a first cavity and a second cavity, and the second cavity is away from the end cover assembly. The first port is in communication with the first cavity, and the third port is in communication with the second cavity. The first spring is partially or completely located in the second cavity. The thermostatic valve further includes a guide fitting part. The thermostatic valve has a simple structure, and the operation thereof is more stable and reliable.

Abstract: A system for adjusting transmission oil temperature, a heat exchange assembly and a valve assembly. The heat exchange assembly includes a heat exchange core, a valve assembly, an adapter base, and a mounting plate fixed with the heat exchange core. The valve assembly is arranged in or partially located in a second passage of the heat exchange core. The valve assembly has a first valve port and a first notch. The heat exchange core further includes a through passage in communication with a fourth port. When a first valve port is opened, a third port is in communication with the fourth port through a first passage, the second passage, the first notch and the first valve port in turn. When the first valve port is closed, the third port is in communication with a fifth port through the first passage, the second passage and the first notch in turn.

Abstract: The present invention discloses a charging control circuit, comprising an external power source, a switching circuit, and a charging path circuit comprising a first output circuit and a second output circuit, wherein the external power source is configured to charge a secondary battery through the first output circuit and charge a load through the second output circuit, and the switching circuit is configured to decouple the secondary battery from the load when the external power source is available. Meanwhile, the present invention discloses a charging control method and an electronic device; according to the present invention, because the two output circuits are coupled to the secondary battery and the load, respectively, the load will not divide up the charging current, thereby effectively shortening the charging time and prolonging the service life of the secondary battery.