How DC to DC 12v Converters Can Be Helpful in Medical Applications?

Posted by HV mtech on December 23rd, 2019

The worst case scenario in medical electronics is that an operator or patient becomes ‘live’ from the faulty equipment (with the SFC or Single Fault Condition)and might be electrocuted or get burn injuries if the current moves from the live source in the body to the ground.

DC to DC 12vgenerally offer an additional level of protection from external single-fault conditions. Equipment might be AC line-powered, battery-operated, class I or II, hand-held, or some other type of high voltage power supply kit.  It might have other connections like to a computer network via Ethernet or USB as would be the case for data or a printer. Cables might or might not reach screens that get connected to the ground. Therefore, specifications of the is location levels of DC to DC 12v is no easy job. Remember that the DC to DC 12v isolation has to be valued for the systems voltage: the plastic casing must have a minimum thickness of 1mm with the appropriate electrical ratings. Then, you don’t need any external connections for the lower-voltage circuitry.

Other DC to DC 12v Specifications are also Important

Isolation, as well as leakage current with normal or single-fault conditions, makes the requirements of headlines for the DC to DC 12v converters with these medical applications; however, there are some limits for the product.  These limitations include temperatures for internal transformer, material flame ability, and other problems that should be documented in the risk analysis relating to smoke, burning, fire, and mechanical hazards.

Practical Designing of DC to DC 12v for the Medical Applications

Having the required creep age as well as clearance distances for miniature DC to DC 12v converters could be challenging, especially around the inside of the transformers. You may be able to use physical spacing within the transformers to offer the correct isolation levels, as well as special methods, which are required including the usage of TIW or Triple Insulated Wire that creates three overlapping layers for wire insulation with a constant helical wrap. The leakage current using stray capacitance is usually low any way. However, DC to DC 12v might need some additional external input-output piece in order to meet regulations for the suppression of the noise made by system common-modes. If fitted well, these capacitors can cross all the isolation barriers and fit the correct, safety-rated ‘Y’ categories as well as maintain the limited value for keeping leakage current low for a proposed application.

Visit www.hvmtech.com for more information about the company and its products such as DC to DC 12v converters.