REGULATED AC TO DC POWER CONVERTER
Pot Control Models: LT-252-400-4, LT-270-400, LT-2100-400
Voltage Control Models: LT-253-400, LT-253A-400, LT-273-400, LT-2103-400
These converters transform an unregulated 115 VAC 400 Hz to a regulated and adjustable DC output via a remote control potentiometer or voltage for voltage controlled models.
The LT-2XX-400 Series is a pulse width-modulated AC to DC converter that provides regulated DC power output. The LT-2XX-400 Series is primarily designed to control the light intensity of incandescent bulbs in vehicle lighting systems. For special orders any two combinations of LT-52A, LT-53, LT-70, LT-73, LT-100 and LT-103 dimmer units may be configured in a single box.
- State of the art design for regulation and positive logic for output overvoltage protection.
- Other LT-2XX-400 Series available in various output voltage and power ratings in the same package, or special units can be provided for various output combinations.
- A panel mount trim pot is provided for the voltage control series to control 0-5 VDC output via 0-3 to 0-5 VDC.
- A test jack is provided to monitor output voltage.
- Designed to meet various applicable portions MIL-STD 704 notice 3, MIL-STD-202 and MIL-T-5422F class 1A.
- The Model LT-2XX-400 Series is serviceable, small and lightweight (42 watts per pound and 1.7 watts per cubic inch)
|Input Voltage:||115 VAC ± 10% @ 400 Hz.|
|Output Voltage:||Adjustable with external 5K ohm, 1/2W rheostat or voltage 0-3 VDC to 0-5 VDC.|
|Regulation:||2% for line, 2% load and 2% temperature.|
|Output Ripple:||25 mVp-p or less.|
|Protection (Overload):||Input and output currents pulse when overload exceeds approximately 125% of rating.|
|Protection (Overvoltage):||Output voltage is limited to approximately 125% of rating eventhough remote control rheostat opens or internal failure occurs.|
|Temperature:||-55°C to +71°C (sufficient cooling required @ +71°C ambient)|
|Size:|| 6.5" L x 6.7" W x 2.4" H.
16.5 cm L x 17 cm W x 6 cm H
|Weight:||3.6 lbs. (1634 grams).|
|Max. Power Rating (watts)||100||150||200||75|
|Input Voltage (VAC) @ 400 HZ||105-125||105-125||105-125||105-125|
|Input Current (ARMS) @ FL @ 115 VAC||1.6||2.0||2.8||1.2|
|Output Voltages DC two parallel||0 to 5||0 to 12||0 to 28||0 to 5|
|Output Current (ADC) Total||0-20||0-12||0-7||0-15|
|PIN NUMBER||DESCRIPTION J1||REMARKS|
|A||115 VAC 400Hz AC input||105 VAC to 125VAC|
|B||400Hz AC input Ret.||Isolated|
|C||Output control||0-5K Pot or 0-3 VDC to 0-5 VDC *|
|D, E||DC Output||Two output in Parallel Operation|
|F, G||DC Return||Chassis Ground|
|J2||Output Voltage Test Point|
* Control range by a panel mount Trim Pot.