CN-224203326-U - Power probing circuit, power utilization module, controller and power utilization system

Abstract

The utility model relates to the technical field of direct-current power supply application, in particular to a power probing circuit, and a power utilization module, a controller and a power utilization system using the same. The power probing circuit comprises a power supply circuit, a control circuit and a switching circuit, wherein the power supply circuit provides electric energy for the control circuit and the switching circuit, the control circuit judges the available power of an external direct current power supply by detecting parameters such as no-load voltage, current and voltage during load operation, and the like, and when detecting that the load power requirement exceeds the power supply power, the control circuit sends an adjusting signal to the switching circuit, and the switching circuit adjusts the output power accordingly or controls on-off so as to ensure that the external direct current power supply continuously and stably works and avoid overload damage. The circuit can ensure that the load can still obtain moderate power supply under the condition of insufficient power supply in a certain voltage and current range, thereby protecting the external power supply, improving the compatibility of electric equipment and having the advantages of simple structure, low cost, various application scenes and the like.

Inventors

• YANG KEXIONG
• CUI QINGJU

Assignees

• 深圳市源峰坤泰科技有限公司

Dates

Publication Date

20260505

Application Date

20250506

Claims (8)

1. 1. A power heuristic circuit, comprising: the power circuit is provided with a connecting end A connected by a direct current power supply; The control circuit is connected with the power supply circuit and used for detecting the power of the direct-current power supply and outputting an adjusting signal according to the detection result; The switch circuit is respectively connected with the power supply circuit and the control circuit, and is provided with a connecting end B connected with the electric load and used for adjusting the power output to the electric load and/or controlling the on-off according to the adjusting signal.
2. 2. The power heuristic circuit of claim 1, wherein the control circuit is configured to detect a voltage when a dc power source is on and determine a dc power source power based on the voltage.
3. 3. The power heuristic circuit of claim 1, wherein the switching circuit adjusts the output power by at least one of pulse width modulation, current limiting mode, or buck mode.
4. 4. The power heuristic circuit of claim 1, further comprising an instruction input circuit coupled to an instruction input of the control circuit.
5. 5. A power heuristic circuit, comprising: The connecting end A is used for connecting an external power supply; the control circuit is connected with the connecting end A and used for detecting the power of the direct-current power supply and outputting an adjusting signal according to the detection result; And the switching circuit is respectively connected with the connecting end A and the control circuit, and is provided with a connecting end B connected with the electric load and used for adjusting the power output to the electric load and/or controlling the on-off according to the adjusting signal.
6. 6. A power usage module, comprising the power heuristic circuit of any of claims 1-5; The power utilization load is connected with the connection end B of the switching circuit.
7. 7. A controller comprising a housing, and the power heuristic circuit of any of claims 1-5 disposed within the housing.
8. 8. An electrical power consumption system comprising the power heuristic circuit of any of claims 1-5, further comprising: the direct-current power supply is connected to the connecting end A; and the electric appliance is connected to the connecting end B.

Description

Power probing circuit, power utilization module, controller and power utilization system Technical Field The utility model relates to the technical field of direct-current power supply application, in particular to a power probing circuit, an electricity utilization module, a controller and an electricity utilization system. Background With the development of society, various electronic devices and electric appliances requiring direct current power supply are increasing. To ensure proper operation of these devices, it is often necessary to match them with a corresponding dc power supply. However, because the power requirements of different devices are greatly different, when the output power of the external direct current power supply is not matched with the requirements of the electrical loads of the devices, if the power supply power is smaller than the electrical loads, the power supply protection is powered off or burnt out, so that the devices cannot be normally supplied with power. In addition, if the user cannot find the alternative power supply in time due to the loss or damage of the original power supply, the waste of idle equipment or repeated purchasing of the power supply is caused. In order to solve the above-mentioned problems, a circuit structure capable of identifying the external dc power supply and dynamically adjusting the output power is needed, so as to achieve a good match between the power supply and the load and improve the working reliability and adaptability of the system. Disclosure of utility model The utility model aims to provide a power probing circuit, an electricity utilization module, a controller and an electricity utilization system aiming at overcoming the defects of the prior art, and aims to realize that the power of an external direct current power supply can be identified, the output power can be dynamically regulated within certain voltage and current, the voltage and the power of a power supply and a load are matched, and the reliability and the adaptability of the system in operation are improved. The scheme can be integrated with other circuits to form a new circuit module, can be independently packaged into a controller, can also form an electric system with an electric appliance and a direct current power supply, is compatible with various heating equipment, electric equipment and lighting devices, and improves the power supply efficiency and universality. The utility model realizes the aim through the following technical scheme that the power probing circuit comprises: The power circuit is provided with a connecting end A (namely an input end of the power circuit) connected by an external direct current power supply and is used for providing power for the control circuit and the switch circuit; The control circuit is connected with the power supply circuit and used for detecting the power of an external direct current power supply and outputting an adjusting signal to the switch circuit according to the detection result; The switch circuit is respectively connected with the power supply circuit and the control circuit, and is provided with a connecting end B (namely an output end of the switch circuit) connected by an electric load and used for adjusting the power output to the electric load and/or controlling the on-off according to the adjusting signal. Further, the control circuit is used for detecting voltage when the direct-current power supply is connected, and judging the power of the direct-current power supply according to the voltage. Specifically, the primary judgment is to quickly know how much power the power supply can provide when the load is electrified, and detect whether the power of the electric load exceeds the power of the power supply, so that overload or protection of the power supply is avoided. The judging result can influence the output mode (current limiting, pulse width modulation and the like) of the switching circuit, and once the insufficient power of the power supply is detected, the control circuit can instruct the switching circuit to reduce the output power, so that the instant overcurrent is avoided, and the power supply is protected. Through the linkage mechanism, the whole circuit system realizes the safe and stable power supply process of 'recognition firstly and regulation secondly'. Further, the switching circuit regulates the output power by at least one of Pulse Width Modulation (PWM), current limiting mode, or buck mode; The connection end A of the power supply circuit, the control circuit and the input end of the switch circuit can be physically combined into one, so that direct conduction between an external direct current power supply and the control circuit and direct conduction between the external direct current power supply and the switch circuit are realized. Further, the control circuit also comprises an instruction input circuit connected with the instruction input end of the control circuit. Specifically,