DC/DC converters with high isolation

DC/DC converters for applications that require high Isolation up to 10kVDC

DC/DC converters are typically galvanically isolated between the input and outputs. This galvanic isolation have different construction and voltages. The simplest (functional) isolation can withstand 1000VDC for one second. Although 1000VDC sounds impressive, sometimes it is still not sufficient. Medical and IGBT gate drivers demand higher isolation voltage. RECOM’s High Isolation converters offer up to 10 times the isolation voltage in compact packages.

RECOM’s IGBT converters have isolation up to 6.4kVDC and asymmetric outputs. The asymmetric outputs of +15V and -9V replaces two converters with one converter, thus saving board space. The high isolation will be able to withstand the stress placed by the high switching rate. RECOM’s IGBT converters are offered in various isolation voltages (up to 6.4kV) and package sizes (SIP/DIP).

Features Applications
  • High isolation up to 10KVDC/1sec
  • High Efficiencies
  • Ultra compact design
  • EN/UL certified
  • 3 years warranty
  • Reinforced or functional isolation
  • Medical applications
  • IGBT driver circuits
  • Motor control units
  • General purpose inverter
  • Uninterruptible power supplies
  • Welding machines

DC/DC Converters with Reinforced Isolation for medical Application

Electrical equipment used on patients must conform to the medical safety standard IEC 60601-1. Often times, DC/DC-converters are used to provide the required safety isolation between the patient and electrical equipment. Reinforced isolation offers an additional level of safety beyond the standard functional isolation. Up to now, it has been extremely difficult to find compact DC/DC-converters with the large air and creepage distances required to meet the definition for reinforced isolation. However, RECOM has achieved this with an innovative design and can offer reinforced isolated converters in compact packages with up to 10kVDC isolation.

Features Applications
  • 2x MOPP reinforced isolation up to 10kVDC
  • EN/UL/CB 60601-1, 3rd Edition certified
  • Industrial temperature range (-40°C up to +85°C)
  • Efficiency up to 88%
  • Industry Standard pin-outs
  • Ultra compact design
  • 3 year warranty
  • Medical applications
  • Monitoring systems
  • Therapy systems
Model RxxPxx/R RxxP2xx/R RV/R REC3.5/R REC6/R
Power 1W 2W 2W 3.5W 6W
Vin 5, 9, 12, 15, 24 5, 12, 15, 24 3.3, 5, 12, 15, 24 4.5 – 9, 9 – 18, 18 – 36, 36 – 75 4.5 – 9, 9 – 18, 18 – 36, 36 – 75
Vout 3.3, 5, 9, 12, 15, ±3.3, ±5, ±9, ±12, ±15 3.3, 5, 9, 12, 15, ±3.3, ±5, ±9, ±12, ±15 3.3, 5, 9, 12, 15, ±3.3, ±5, ±9, ±12, ±15 5, 9, 12, 15, 24, ±5, ±9, ±12, ±15 5, 9, 12, 15, 24, ±5, ±9, ±12, ±15
Isolation 6.4kVDCor 8kVDC 6.4kVDC or 8kVDC 6.4kVDC or 8kVDC 8kVDC or 10kVDC 8kVDC or 10kVDC
Cert. EN 60601-1 3rd ed. UL 60601-1 3rd ed. CB 60601-1 3rd ed. EN 60601-1 3rd ed. UL 60601-1 3rd ed. CB 60601-1 3rd ed. EN 60601-1 3rd ed. UL 60601-1 3rd ed. CB 60601-1 3rd ed. EN 60601-1 3rd ed. UL 60601-1 3rd ed. CB 60601-1 3rd ed. EN 60601-1 3rd ed. UL 60601-1 3rd ed. CB 60601-1 3rd ed.
Case SIP7 SIP7 Mini DIP24 DIP24 DIP24

High isolated DC/DC converters to extend the lifetime of IGBT drivers

IGBT controllers are used to converter DC voltage to AC voltage. These IGBT drivers switch at a fast rate, often at 10kHz or more, to maintain a high efficiency. Optocouplers act as an insulator for the control signal, but there is a need for an insulator on the power side. These DC/AC inverters are often floated at a few hundred voltages. A typical isolation voltage would be at least twice the working voltage. Taking into account the high switching rates and high floating voltages, high isolated converters are needed to power these IGBT gate drivers. This will extend the lifetime and reliability of the DC/AC inverters.

Features Applications
  • Asymmetric outputs +15V/-9V
  • Efficiency up to 86%
  • High grade isolation up to 6.4kVDC/1sec
  • Operating temperature range up to 90°C
  • EN certified
  • 3 year warranty
  • IGBT gate driver circuits
  • Motor control units
  • General purpose inverter
  • Uninterruptible power supplies
  • Welding machines
Model RH-xx1509D RP-xx1509D RxxP1509D RKZ-xx1509D RGZ-xx1509D RV-xx1509D RxxP21509D
Power 1W 1W 1W 2W 2W 2W 2W
Vin 5, 12, 24 5, 12, 24 5, 12, 24 5, 12, 24 5, 12, 24 5, 12, 24 5, 12, 24
Vout +15V/-9V +15V/-9V +15V/-9V +15V/-9V +15V/-9V +15V/-9V +15V/-9V
Isolation 3kVDC or 4kVDC 5.2kVDC 6.4kVDC 3kVDC or 4kVDC 3kVDC or 4kVDC 6kVDC 6.4kVDC
Cert. EN EN EN EN EN EN EN
Case SIP7 SIP7 SIP7 SIP7 DIP14 Mini DIP24 SIP7

Product Training Module

High-Isolation

Resources

Application Notes Selection Guide