Power source circuit of central air conditioning regional controller

Abstract

The present invention discloses a power source circuit of a central air conditioning regional controller. The power source circuit is characterized in that the power source circuit includes a first power source generation circuit, a second power source generation circuit and a third power source generation circuit which generate a 24V driving power source, a 5V digital power source and a 5V analog power source respectively; and the power source circuit can generate 24V voltage, 5V voltage and 5V voltage through the first power source generation circuit, the second power source generation circuit and the third power source generation circuit sequentially. The power source circuit of the present invention has the advantages of structural simplicity and high practicability.

Description

technical field [0001] The invention relates to the technical field of power supply circuits, in particular to a power supply circuit for a central air-conditioning partition controller. Background technique [0002] Hydraulic imbalance is the most common problem in building HVAC water systems. Due to hydraulic imbalance, the flow distribution of the system is unreasonable, with excess flow in some areas and insufficient flow in some areas, resulting in the situation that some areas are not hot in winter and not cold in summer, and the system transports cold and heat unreasonably, resulting in energy waste. Or in order to solve this problem, improve the water pump head, but still can produce heat (cold) uneven and bigger electric energy waste. Therefore, the corresponding regulating valve must be used to adjust the flow distribution of the system. [0003] Although some general-purpose valves such as globe valves and ball valves also have a certain adjustment ability, but ...

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Problems solved by technology

[0003] Although some general-purpose valves such as globe valves and ball valves also have a certain adjustment ability, but because there is no control system and the real-time adjustment cannot meet the flow requirements of the system, this adjustment can only be said to be qualitative and inaccurate. It often brings great inconvenience to the debugging work and operation management after the installation of the project

[0004] In the system design, different power supplies are required between different modules. The traditional power supply method is to supply power to each module separately, and the circuit connection is complicated and wiring is difficult.

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