Safety output device for voltage changer and voltage changer provided with same
A voltage converter and safe output technology, applied in output power conversion devices, emergency protection circuit devices, and irreversible AC power input conversion to DC power output, etc. Unknown risks of use, unstable manufacturing quality and other problems, to achieve the effect of low cost, guaranteed safety, and simple circuit
Inactive Publication Date: 2010-03-03
KERIO TECHNOLOGIES INC
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Problems solved by technology
However, once the original dedicated transformer is not carried, or the original dedicated voltage converter is lost, and a new voltage converter must be purchased, it is necessary to face the voltage conversion of many voltage converters on the market that do not have a circuit to monitor the output voltage Even if the output voltage is wrong, there will be no warning; or due to unstable manufacturing quality, even if there is a monitoring circuit device in the voltage converter, there may be problems between the monitoring device and the output port, causing the power output to the electrical appliance to change suddenly. , consumers are thus forced to face unknown risks of use
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[0040] The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the accompanying drawings.
[0041] figure 2 It is an application schematic diagram of the first preferred embodiment of the voltage converter and the safety output device used in the present invention. In this example, take the voltage converter connected to the general room electrical outlet 8 as an example, and its input voltage is 110 volts alternating current, and the electrical appliance that receives the power supplied by the voltage converter is called an electrical device. For the convenience of explanation, this example The middle electrical device is an example of a mobile phone 9 whose allowable charging voltage is 5 volts direct current. Of course, those skilled in the art can easily understand that the input voltage can also be 220 volts alternating current, or...
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The invention relates to a safety output device for a voltage changer and a voltage changer with the same, wherein the voltage changer comprises a voltage change body outputting electric energy with predetermined direct current voltage; the safety output device is assembled on a powered device, energy of which is supplied by the voltage changer; and the safety output device comprises a set of leadgroup electrically connected with the voltage change body, a group of sensing control unit used for measuring lead potential difference in the lead group, and a switch which is activated by the sensing control unit when the predetermined direct voltage is matched with the sensing so as to conduct the voltage change body and the powered device. The safety output device is convenient and portable,is directly assembled on the power connecting parts of electrical appliances, and not only ensures the voltage of electrical appliance is in ideal range but also can avoid damage by cutting off powerwhen current is overhigh.
Description
technical field [0001] The invention relates to a safety output device, in particular to a safety output device for a voltage converter and a voltage converter with the device. Background technique [0002] The circuit components used in many electrical appliances are digital circuit components, so that the electric energy used is low-voltage direct current, but the electric energy transmitted by the power plant is high-voltage alternating current; therefore, between indoor sockets and electrical appliances, must After voltage conversion. With the popularity of portable electrical products, voltage converters cannot be built into miniature portable electrical products, and various voltage converters have become indispensable in modern life: such as Walkmans, Mobile phones, MP3 players, laptops and other large and small electrical appliances almost all use corresponding voltage converters. [0003] Furthermore, due to the commercial considerations of various electrical appl...
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IPC IPC(8): H02M7/04H02M1/00H02H7/12
Inventor 王冠群
Owner KERIO TECHNOLOGIES INC