. In the list of your download files, click on the program or update. Easiteach Next Generation is the latest interactive . In the list of your download files, click on the program or update..The present invention relates generally to electronic power conversion circuits, and more particularly to a power factor corrected or sinusoidal charger.
Voltage doubler power supply circuits are widely used in a variety of applications, such as an ac-dc (alternating current-direct current) power factor corrected or sinusoidal charger. Many conventional power supplies, however, are not power factor corrected or sinusoidal as required in some applications. For example, many power supplies which are used to charge batteries for electronic devices such as a mobile telephone or a laptop computer employ a resonant charging circuit instead of a power factor corrected or sinusoidal circuit. Such a power supply employs an inductor or a transformer, which produces a switching current at frequency equal to the switching frequency of the electronic device. Since such a charging circuit employs a resonant circuit, which is a non-linear circuit that does not produce a sinusoidal current or a power factor corrected current, an undesirable pulsating current is formed at the output of the power supply. Pulsating current is undesirable in power supplies used for charging a battery. In addition, such a power supply does not improve the efficiency of the power supply.
In another example, a power supply that is intended for use in electronic devices such as a mobile telephone, employs a switching type regulator to reduce the overall cost of the power supply, but is not power factor corrected or sinusoidal. Such a power supply, however, exhibits a substantial ripple current at the output. Ripple current is undesirable at the output of a power supply. The ripple current is an unwanted current, which is not provided by the power supply. The ripple current is the fundamental harmonic current of the fundamental sinusoidal current produced by a power factor corrected or sinusoidal charger.
Accordingly, it would be desirable to provide a power supply that is power factor corrected or sinusoidal.
A power factor corrected or sinusoidal charger circuit is disclosed. The power factor corrected or sinusoidal charger circuit includes a non-linear circuit, an output rectifier circuit, a filter circuit, and an auxiliary output voltage rectifying circuit. The non-linear circuit is coupled to an input voltage source and an input voltage. The non-linear circuit produces a non-linear or non-linear voltage and an 0b46394aab