Military Power Supplies and Systems

Military Power Systems are designed for the extreme environmental and demanding electrical conditions of Military applications. SynQor incorporates field proven high-efficiency designs and rugged packaging technologies. They are designed and manufactured in SynQor's USA facilities to comply with a wide range of standards.

Learn More About Our Military Power Systems

Hi-Rel Converters and Filters

The MilQor^® series of high-reliability DC-DC converters and EMI filters bring SynQor's field proven high-efficiency synchronous rectifier technology to the Military/Aerospace industry. SynQor's innovative QorSeal^® packaging approach ensures survivability in the most hostile environments. Compatible with the industry standard format, these converters operate at a fixed frequency, have no opto-isolators, and follow conservative component derating guidelines.

• Hi-Rel Converters

  The MilQor^® series of high-reliability DC-DC converters brings SynQor’s field proven high-efficiency synchronous rectifier technology to the Military/Avionics industry. SynQor’s innovative QorSeal^® packaging approach ensures survivability in the most hostile environments. Compatible with the industry standard format, these converters operate at a fixed frequency, have no opto-isolators, and follow conservative component derating guidelines.

  Hi-Rel Product Features

  • Fixed switching frequency
  • No opto-isolators
  • Parallel operation with current share on MQFL
  • Remote sense
  • Clock synchronization
  • Primary referenced enable
  • Secondary referenced enable on MQFL
  • Continuous short circuit and overload protection with auto-restart feature
  • Input under-voltage and over-voltage shutdown
  • Output voltage trim range (MQHL, MQHR and MQBL) +10% to -10%
  • -55°C to +125°C Operating Temperature

  Design Process

  • Hi-Rel series converters are:
  • Designed for reliability per NAVSO P-3641A guidelines
  • Designed with components derated per:
    • MIL-HDBK-1547A
    • NAVSO P-3641A

  Qualification Process

  • Hi-Rel series converters are qualified to:
  • MIL-STD-810: consistent with RTCA/DO-160
  • SynQor’s First Article Qualification: consistent with MIL-STD-883
  • SynQor’s Long-Term Storage Survivability Qual.
  • SynQor’s on-going life test
  • SynQor’s element evaluation for HB and ES Grade

  Specification Compliance

  • Hi-Rel series converters (with Hi-Rel filter) are designed to meet:
    • MIL-HDBK-704
    • RTCA/DO-160 Section 16, 17, 18
    • MIL-STD-1275
    • DEF-STAN 61-5 (Part 6)/(5, 6)
    • MIL-STD-461
    • RTCA/DO-160 Section 22
• Hi-Rel Bus Converters

  High Reliability DC-DC Bus Converters that Deliver High Output Power with High Efficiency in a Small Package

  SynQor’s MilQor^® Hi-Rel DC-DC Bus converters are designed to deliver unregulated high output power with very high efficiency in a small package. These isolated converters use SynQor’s field proven, high efficiency synchronous rectifier technology and QorSeal^® packaging system in order to deliver a Military-Grade product specifically designed for the harshest conditions of military and aerospace industries. The bus converters are ideal for creating a mid-bus voltage which can drive multiple non-isolated converters in an intermediate bus architecture.

• Hi-Rel Screening

  High Reliability Screening for Optimal Performance

  The Hi-Rel screening process is divided into 8 categories and is designed to ensure reliability and optimal performance of each converter according to their electrical and environmental specifications. The screening process is specifically tailored to each product family specification requirements.

  SCREENING	Consistent with MIL-STD-883	C-Grade (0°C to + 70°C)	ES-Grade (-45°C to + 100°C)	HB-Grade (-55°C to + 125°C)
  Element Evaluation	•	No	Yes	Yes
  Internal Visual	Per IPC-A-610 Class III	Yes	Yes	Yes
  Temperature Cycle	Method 1010	No	Condition B (-55°C to +125°C)	Condition C (-65°C to +150°C)
  Constant Acc.	Method 2001 (Y1 Direction)	No	500g	Condition A (5000g)
  Burn-In	Method 1015	24hrs @ +125°C	96hrs @ +125°C	160hrs @ 125°C
  Final Electrical Test	Method 5005 (Group A)	+25°C	-45°C, +25°C, +100°C	-55°C, +25°C, +125°C
  External Visual	Method 2009	Yes	Yes	Yes
  Construction	•	•	QorSeal®	QorSeal®

• Hi-Rel Filters

  High-Reliability, Field Proven Filters for Military/Avionics Applications

  The MilQor^® series of high-reliability EMI Filters bring SynQor’s field proven technology to the Military/Avionics industry. SynQor’s innovative QorSeal^® packaging approach ensures survivability in the most hostile environments. Compatible with the industry standard format, these filters follow conservative component tracking guidelines.

MCOTS Converters and Filters

Ruggedized Power Converters and Filters Manufactured to Comply with a Wide Range of Military Standards. The Mil-COTS product lines bring SynQor's field proven high-efficiency synchronous rectifier technology to the Military/Aerospace industry

• Isolated DC-DC Converters
  • Product Family: Mil-COTS
  • High efficiency up to 95%
  • Input voltage ranges from 9 V to 425 V
  • Output power up to 1,000 W
  • Conduction cooled, ruggedized package

  MCOTS Product Features

  • High efficiency power supply, up to 95% at full rated load current
  • Fixed frequency switching provides predictable EMI
  • No minimum load requirement
  • Rugged design for harsh environments
  • Full Feature option on some models
  • Flanged baseplate available
  • Industry standard pin-out configurations and
  • standard footprints.
  • Available: High-capacitance option for very large
  • output capacitance and extreme transient applications
  • -55°C to +100°C Operating Temperature

  Compliance Features

  • Mil-COTS converters with Mil-COTS filters are designed to meet:
    • MIL-HDBK-704
    • RTCA/DO-160 Section 16, 17, 18
    • MIL-STD-1275
    • MIL-STD-461
    • DEF-STAN 61-5 (part 6)/(5, 6)

  Protection

  • Input under-voltage lockout

  • Output current limit and short circuit protection
  • Active back bias limit
  • Output over-voltage protection
  • Thermal shutdown (not on DM Package Size)

  Control

  • On/Off control referenced to input side
  • (Fully isolated Full Bricks)
  • Remote sense for the output voltage
  • Digital Output Current Sharing (HZ only)
  • Output voltage trim range of: +10% to -20%
    • (Half-Brick Zeta) +10% to -50%
    • (Quarter-Brick Exa) +10% to -50%
    • (Sixteenth Brick) +10% to -10%

  
   
• Power Factor Correction Modules

  Operational Features

  • Universal input voltage range: 85-264 Vrms
  • Narrow input voltage range: 85-140 Vrms
  • Universal input frequency range:
    • 47 - 63 Hz / 360 - 800 Hz
  • Up to 700 W output power
  • ≥0.99 Power Factor
  • High efficiency: Up to 95% (115 Vrms)
  • Internal inrush current limit
  • Auxiliary 10 V bias supply
  • 100°C max baseplate temperature at full power
  • -55°C to +100°C Operating Temperature
  • Can be paralleled with current sharing
  • Compatible with SynQor’s MCOTS DC-DC Converters and SynQor’s MCOTS AC line filters

  Protection/Control Features

  • PFC Enable
  • Load Enable (also: Power Out Good signal)
  • AC Power Good Signal (Half-Brick Only)
  • Clock synchronization (Half-Brick Only)
  • Output current monitor/current sharing (Half-Brick Only)
  • Input current limit and auto-recovery short circuit protection
  • Auto-recovery input under/over-voltage protection
  • Auto-recovery output over-voltage protection
  • Auto-recovery thermal shutdown

  3-Phase Power

  Operational Features

  • Full-brick form factor industry standard
  • 1.5 kW continuous (2.0 kW surge)
  • Semi-regulated output: 270 Vdc
  • Compatible with Military Standard 60 Hz, 400 Hz and variable frequency systems
  • Meets military standards for harmonic content
  • Minimal Inrush current
  • Compatible with large external hold-up capacitors
  • Additional Half-brick input filter available to meet full EMI
  • 100°C max baseplate temperature at full power
  • -55°C to +100°C Operating Temperature
  • Parallelable for higher power on a common input filter
  • Compatible with SynQor MCOTS - 270 Converters
  • Enables systems with repetitive load transients to pass MIL-STD-461 CE101 with superior load current rejection

  
  Protection/Control Features

  • PFC Enable
  • AC and DC Power Good outputs
  • Clock synchronization output
  • Input current limit and auto-recovery short circuit protection
  • Auto-recovery input under/over-voltage protection
  • Auto-recovery output over-voltage protection
  • Auto-recovery thermal shutdown
  • Parallel Option Available
• Isolated Power Factor Correction Modules

  Operational Features

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

  Protection/Control Features

  • PFC Enable
  • AC and DC Power Good outputs
  • Input current limit and auto-recovery short circuit protection
  • Auto-recovery input under/over-voltage protection
  • Auto-recovery output over-voltage protection
  • Auto-recovery thermal shutdown
• DC-DC Bus Converters

  Operational Features

  • High efficiency, up to 95% at full rated load current
  • Delivers 32 A full power with minimal derating
  • Operating input voltage range: 230-400 V and 440-700 V
  • Fixed frequency switching provides predictable EMI
  • No minimum load requirement
  • Industry standard half-brick pin-out configuration
  • -55°C to +100°C Operating Temperature

  Protection/Control Features

  • Input under-voltage and over voltage lockout protects against abnormal input voltages
  • Output current limit and short circuit protection (auto recovery)
  • Thermal shutdown
  • On/Off control referenced to input side
  • Inherent current share (by droop method) for high current and parallel applications
  • Clock synchronization (primary reference)
• High Voltage Non-Isolated DC-DC Converters

  Operational Features

  • Ultra-high efficiency up to 97%
  • Wide input voltage ranges: 9-60 V (28V); 9-90 V (28VE)
  • Buck/Boost Mode available
  • Maximum input/output currents up to 40 A
  • Suitable for use in Intermediate Bus Architectures
  • On-board input and output filtering
  • No minimum load requirement
  • -55°C to +100°C Operating Temperature
  • Remote sense and wide output voltage trim (Half-brick only)

  Protection/Control Features

  • Input under-voltage lockout (UVLO)
  • Output current limit (OCP) and short circuit protection
  • Output over-voltage protection (OVP)
  • Thermal shutdown (OTP)
  • Output voltage trim

  Battery Charging

  • Key feature of Trimmable Current Limit
  • Provides the power conversion platform for battery charging
  • Output current limit is externally controlled for constant-current charging
  • Current can be set with an external resistor or an active circuit
  • Current analog signal provided for instrumentation and control functions
  • Ideal diode output stage with zero back-drive currents prevents discharge of battery when not charging
  • Output voltage set-point is independently controlled through trim pin
  • Unit will smoothly transition between current and voltage modes as charging cycle needs change
• Quad Output Non-Isolated DC-DC Converters

  Operational Features

  • High efficiency, up to 93% at full rated load current
  • Delivers up to 30 A on each positive output and 1 A on the negative output
  • Input Voltage Range: 6-15 V
  • Output Voltage Range:
    • Positive Outputs: 0.8 V to 5 V
    • Negative Output: -3.0 V to -13.5 V
  • -55°C to +100°C Operating Temperature

  Protection/Control Features

  • Over-current shutdown (all outputs)
  • Thermal shutdown (all outputs)
  • Over-voltage shutdown (positive outputs only)
  • Input under-voltage lockout (positive outputs only)
  • On/Off control for each output
  • Output voltage trim for each output permits custom voltages
  • Remote Sense (positive outputs only)
• DC Filters

  Filter Features

  • Low DC resistance
  • Differential-mode attenuation
  • Common-mode attenuation
  • Bulk capacitance provides input system stabilization
  • for downstream power converters
  • -55°C to +100°C Operating Temperature
  • No electrolytic capacitors (all ceramic design)
  • High-voltage isolation between common-mode pins
  • and input / output
  • Wide temperature range operation
  • Designed to meet MIL-STD-461
• AC Line Filters

  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 baseplate
  • and input/output
  • Internally damped
  • -55°C to +100°C Operating Temperature
  • Low power dissipation
  • Complies with industry EMI standards when used with
  • SynQor MPFC and DC-DC converter modules
• 3-Phase AC Line Filters

  Operational Features

  • Full-brick form factor industry standard
  • 1.5 kW continuous (2.0 kW surge)
  • Semi-regulated output: 270 Vdc
  • Compatible with Military Standard 60 Hz, 400 Hz and variable frequency systems
  • Meets military standards for harmonic content
  • Minimal Inrush current
  • Compatible with large external hold-up capacitors
  • Additional Half-brick input filter available to meet full EMI
  • 100°C max baseplate temperature at full power
  • -55°C to +100°C Operating Temperature
  • Parallelable for higher power on a common input filter
  • Compatible with SynQor MCOTS - 270 Converters
  • Enables systems with repetitive load transients to pass MIL-STD-461 CE101 with superior load current rejection

  Protection/Control Features

  • PFC Enable
  • AC and DC Power Good outputs
  • Clock synchronization output
  • Input current limit and auto-recovery short circuit protection
  • Auto-recovery input under/over-voltage protection
  • Auto-recovery output over-voltage protection
  • Auto-recovery thermal shutdown
  • Parallel Option Available
• MCOTS Screening
  The  MCOTS screening process is divided into 7 categories and is designed to ensure the correct and optimal performance of each converter according to their electrical and environmental specifications. The screening process is specifically tailored to each of the S-Grade and M-Grade product family specification requirements.