Low power consumption boost circuit for electronic product

Abstract

The invention discloses a low power consumption boost circuit for an electronic product. The low power consumption boost circuit for an electronic product comprises a pull up circuit and a pull down circuit, wherein the pull up circuit comprises a PMOS pipe P1 and a PMOS pipe P2; the pull down circuit comprises an NMOS pipe N1 and an NMOS pipe N2; a G pole of the PMOS pipe P1 is connected with an UP signal input end; and the S pole of the PMOS pipe P1 is connected with a power supply Vdd, an S pole of a PMOS pipe P3, an S pole of a PMOS pipe P4 and an S pole of a PMOS pipe P5. Without requirement for external connection with inductance elements, the low power consumption boost circuit for an electronic product can realize boosting to a certain extent; as no inductance elements exist, the low power consumption boost circuit for an electronic product overcomes the EMI problem caused by the power source based on inductance; and the low power consumption boost circuit for an electronic product has the advantages of being low in generation of electromagnetic interference, being high in efficiency, being simple in circuit structure, being small in the occupied area, being low in power consumption, and being able to work with high efficiency when the power supply is under the low voltage condition.

Description

technical field [0001] The invention relates to a voltage boosting circuit, in particular to a low power consumption voltage boosting circuit for electronic products. Background technique [0002] The wide application of portable devices such as mobile phones has created a large number of new requirements for power management. In order to support increasingly complex system power requirements and new functions, major chip design companies have proposed advanced power supplies with different characteristics and smaller and smaller sizes. Management solutions, but the heat dissipation capability of small-size packages is not as good as that of large-size package products, forcing the conversion efficiency of devices to be improved, so switching regulators are replacing linear regulators to extend the working time, but the working time of portable devices such as mobile phones is still It cannot meet the needs of people, and the problems of noise and electromagnetic interferenc...

AI Technical Summary

Problems solved by technology

[0002] The wide application of portable devices such as mobile phones has created a large number of new requirements for power management. In order to support increasingly complex system power requirements and new functions, major chip design companies have proposed advanced power supplies with different characteristics and smaller and smaller sizes. Management solutions, but the heat dissipation capability of small-size packages is not as good as that of large-size package products, forcing the conversion efficiency of devices to be improved, so switching regulators are replacing linear regulators to extend the working time, but the working time of portable devices such as mobile phones is still Can not meet people's needs, and the problems of noise and electromagnetic interference will follow

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