[introduction] the development as science and technology, UPS (UPS) the application in each domains is wider and wider. UPS is a kind of equipment that can supply stable, reliable power supply for electronic equipment, can interrupt in town report when instantly switch arrives in-house batteries power supply, those who assure equipment is normal move. According to its job principle and structural characteristic, UPS can divide the UPS that is based on transformer to be mixed without transformer UPS. Article general has trade off study to the design of these two kinds of UPS.

As the development of science and technology, UPS (UPS) the application in each domains is wider and wider. UPS is a kind of equipment that can supply stable, reliable power supply for electronic equipment, can interrupt in town report when instantly switch arrives in-house batteries power supply, those who assure equipment is normal move. According to its job principle and structural characteristic, UPS can divide the UPS that is based on transformer to be mixed without transformer UPS. Article general has trade off study to the design of these two kinds of UPS.

One, design without transformer UPS

Having transformer UPS is to show rectifier, inverter and batteries direct link arrives laden UPS. Its job principle is: Town report is dc through rectifier changeover, it is dc changeover alternating current through inverter next, provide steady power source for load. When town report is interrupted, meet without transformer UPS instantly switch arrives batteries power supply, those who assure load is normal move.

Without transformer UPS sketch map

Without the advantage of transformer UPS:

1. structure is simple: As a result of leave out transformer, the structure that does not have transformer UPS is more simple, facilitating installation and safeguard.
2. efficiency is tall: The changeover efficiency that does not have transformer UPS is taller, because the energy loss between rectifier and inverter is lesser.
3. cost is low: As a result of leave out transformer, the cost that does not have transformer UPS is inferior.

Without the defect of transformer UPS:

1. outputs voltage not to stabilize: Because do not have the output voltage of transformer UPS to get the influence of rectifier and inverter, its output voltage to may be put in constant wave motion.

2. is poorer to laden adaptability: Be opposite without transformer UPS laden adaptability is poorer, what cannot get used to different type is laden.

2, the UPS design that is based on transformer

The UPS that is based on transformer is to point to join rectifier, inverter and batteries through transformer laden UPS. Its job principle is: Town report is dc through rectifier changeover, pass transformer next dc step up or step-down, repass inverter is dc changeover alternating current, provide steady power source for load. When town report is interrupted, the UPS that is based on transformer is met instantly switch arrives batteries power supply, those who assure load is normal move.

Be based on the UPS sketch map of transformer

Be based on the advantage of the UPS of transformer:

1. outputs voltage stability: Because be based on the output of the UPS of transformer,voltage gets the control of transformer, its output voltage is relatively stable.
2. is better to laden adaptability: The UPS that is based on transformer can get used to the load of different type, satisfy the requirement of different equipment.

Be based on the defect of the UPS of transformer:

1. structure is complex: Because need to use transformer, the structure of the UPS that is based on transformer is relatively complex, it is relatively difficult to install and be safeguarded.
2. cost is higher: Because need to use transformer, the cost of the UPS that is based on transformer is higher.

3, summary

Pass the trade off study that designs to having transformer UPS and the UPS that are based on transformer, we can see, both each have actor drawback. Have a structure without transformer UPS simple, efficiency tall, cost is low advantage, but its output voltage to be not stabilized, poorer to laden adaptability; And it is voltage stability, better to laden adaptability that the UPS that is based on transformer has output wait for an advantage, but its structure is complex, cost is higher. Accordingly, when choosing UPS, the user needs the effective demand according to oneself and applied setting, consider all sorts of factors integratedly, select right UPS kind.

Be based on the technical difference between the UPS of transformer and the UPS that do not have transformer

Apparent, without transformer and the UPS that are based on transformer between most the existence that the distinction that showing is transformer component. To know their technical characteristic and property better, listed character of the following technology is compared below.

 

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