Filters & PFC modules

Filtre EMI pour convertisseurs militaire

DC MILCOTS filters

We offer EMI filters for MIL-COTS DC-DC converters. All EMI filters offer high levels of differential and common mode attenuation and include stabilising ground capacitors and damping resistors.

Filter features:

  • Low DC resistance
  • Differential mode attenuation
  • Common mode attenuation
  • The overall capacitance allows the input system to be stabilised for downstream power converters
  • Operating temperature from -55°C to +100°C
  • No electrolytic capacitors (all ceramic design)
  • High voltage isolation between common mode pins and input/output
  • Operates over a wide temperature range
  • Designed to meet MIL-STD-461

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Filtre de ligne AC militaire

AC line filters

We supply AC line filters for the Mil-COTS series of PFC modules and DC-DC converters. SynQor’s high performance filters are designed to comply with military EMI requirements.

Filter features:

  • Universal input voltage range
  • 500 W @ 115 Vrms or 1 kW @ 230 Vrms (Eighth-Brick)
  • 1 kW @ 115 V or 2 kW @ 230 V (Half-Brick)
  • All ceramic capacitor design
  • High voltage isolation between base plate and input/output
  • Internal damping
  • Operating temperature from -55°C to +100°C
  • Low power dissipation
  • Meets industry EMI standards when used with the following modules: MPFC modules and SynQor DC-DC converters

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Modules de correction du facteur de puissance

PFC modules MILCOTS

The power factor correction module is an essential part of an AC-DC power supply. Used in conjunction with a holding capacitor, MCOTS high efficiency DC-DC converters and the MCOTS AC line filter, the PFC will draw a near perfect sinusoidal current (PF>0.99) from a single phase AC input. The power factor correction unit is supplied fully encapsulated to provide protection against the harsh conditions encountered in many military and extreme environments.

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Modules de correction du facteur de puissance isolés

Mil-COTS isolated power factor correction module

The power factor correction module is a high power, high efficiency AC-DC converter. It operates from a universal AC input and generates an isolated output. Used in conjunction with a holding capacitor and the MCOTS AC line filter, the PFC will draw a near perfect sinusoidal current (PF>0.99) from a single phase AC input. The module is supplied fully enclosed to provide protection against the harsh environments encountered in many military and aerospace environments.

Operational characteristics:

  • Isolated output, 325 W output power
  • Universal input frequency range: 47 – 63 Hz / 360 – 800 Hz
  • Input voltage range: 85-264 Vrms
  • Power factor ≥0.99
  • High efficiency: 92% (230 Vrms)
  • Operating temperature -55°C to +100°C
  • Internal inrush current limiting
  • Auxiliary 10 V bias supply, referenced to primary side.
  • Can be paralleled (droop version only)
  • Compatible with SynQor MCOTS AC line filters

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Modules de correction du facteur de puissance triphasé

3-phase military PFC modules

Operational characteristics :

  • Industry standard full-brick form factor
  • 1.5 kW continuous (2.0 kW peak)
  • Semi-regulated output: 270 Vdc
  • Compatible with military 60 Hz, 400 Hz and variable frequency systems.
  • Meets military standards for harmonic content
  • Minimum inrush current
  • Compatible with large external holding capacitors
  • Additional half-brick input filter available to meet all EMI requirements.
  • Maximum baseplate temperature of 100°C at full power
  • Operating temperature from -55°C to +100°C
  • Can be paralleled for higher power on a common input filter
  • Compatible with SynQor MCOTS – 270 converters
  • Allows systems with repetitive load transients to pass MIL-STD-461 CE101 with superior load current rejection.

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Filtre AC 3 phases

Mil-COTS 3-phase AC line filter modules

We offer AC line filters for the MIL-COTS series of PFC modules and DC-DC converters. These high performance filters are designed to meet military EMI requirements. These filters have high differential mode attenuation and low series resistance.

Filter characteristics :

  • >2 kW @ 115 V
  • 6.0-8.0 Arms
  • Very low series resistance
  • Internal damping
  • High voltage isolation between base plate and input/output
  • Operating temperature from -55°C to +100°C
  • Low power dissipation
  • Meets industry EMI standards when used with SynQor MPFC and MCOTS DC-DC
  • converter modules
  • Quarter-brick filter with differential mode filtering only for use with the 3-phase parallelizable PFC model.

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