Power supply circuit having power assigning elements between output branches
View Patent ↗An power supply circuit includes at least one voltage converting circuit, a plurality of output branches, and a plurality of power assigning elements. The at least one voltage converting circuit is configured for converting a primary voltage signal to at least one alternating current (AC) voltage signal. Each of the output branches is configured for providing a direct current (DC) power supply to a respective load circuit based on the at least one AC voltage signal. The power assigning elements are configured to reassign the DC power supplies provided by the output branches to the load circuits.
1. A power supply circuit, comprising:
at least one voltage converting circuit configured for converting a primary voltage signal to at least one alternating current (AC) voltage signal;
a plurality of output branches, each of which is configured for providing a direct current (DC) power supply to a respective load circuit based on the at least one AC voltage signal; and
a plurality of power assigning elements configured to reassign the DC power supplies provided by the output branches to the load circuits.
2. The power supply circuit of claim 1 , wherein each of the power assigning elements is a resistor.
3. The power supply circuit of claim 1 , wherein each of the output branches comprises an output terminal configured for outputting the DC power supply to the corresponding load circuit.
4. The power supply circuit of claim 3 , wherein each of the output terminals is electrically coupled via the power assigning elements in series.
5. The power supply circuit of claim 1 , wherein one of the output branches is selected as a base output branch, and any other output branch is electrically coupled to the base output branch via a corresponding one of the power assigning elements.
6. The power supply circuit of claim 5 , further comprising a feedback branch configured for providing a feedback signal according to the power supply provided by the base output branch.
7. The power supply circuit of claim 1 , further comprising a non-loaded output branch configured for providing an auxiliary power supply to any selected one of the load circuits corresponding to other output branches.
8. The power supply circuit of claim 1 , wherein the at least one voltage converting circuit comprises a plurality of voltage converting circuits, and each of the plurality of voltage converting circuits is configured for converting the primary voltage signal to a respective AC voltage signal, and outputting the AC voltage signal to a corresponding one of the output branches.
9. The power supply circuit of claim 8 , wherein the voltage converting circuit is a transformer.
10. The power supply circuit of claim 1 , wherein each of the load circuits is selected from the group consisting of a universal serial bus circuit, an analog to digital circuit, and an audio circuit.
11. A power supply circuit, comprising:
at least one voltage converting circuit configured for providing at least one primary voltage signal;
a plurality of output branches, each of which is configured for providing a respective output voltage signal according to the at least one primary voltage signal; and
a plurality of power assigning elements electrically coupled between the output branches.
12. The power supply circuit of claim 11 , wherein each of the power assigning elements is a resistor.
13. The power supply circuit of claim 11 , wherein each of the output branches comprises an output terminal electrically coupled to a respective load circuit.
14. The power supply circuit of claim 13 , wherein each of the output terminals is electrically coupled via the power assigning elements in series.
15. The power supply circuit of claim 13 , wherein one of the output branches is selected as a base output branch, and any other output branch is electrically coupled to the output terminal of the base output branch via a corresponding one of the power assigning elements.
16. The power supply circuit of claim 15 , further comprising a feedback branch configured for providing a feedback signal according to the electrical potential of the output terminal of the base output branch.
17. The power supply circuit of claim 11 , further comprising a non-loaded output branch configured for providing an auxiliary power supply to any selected one of the load circuits corresponding to other output branches.
18. The power supply circuit of claim 11 , wherein the at least one voltage converting circuit comprises a plurality of voltage converting circuits, and each of the plurality of voltage converting circuits is configured for converting the primary voltage signal to a respective AC voltage signal, and outputting the AC voltage signal to a corresponding one of the output branches.
19. The power supply circuit of claim 11 , wherein each of the load circuits is selected from the group consisting of a universal serial bus circuit, an analog to digital circuit, and an audio circuit.