Description
Uninterruptible Power Supply Computer Access Control Security Industrial DC Power Supply DC UPS Power Supply Module
Product Description
UPS-1228-12 is a high-efficiency DC UPS power module, specially designed for applications that require DC backup power. The module has a wide input voltage range, supports lead-acid batteries, lithium-ion, lithium polymer, and lithium iron phosphate batteries as backup batteries. It has complete charging management functions. At the same time, the on-board automatic voltage regulator circuit can directly provide voltage regulation After the DC power supply to the device. When switching between the input power supply and the battery, the output voltage is stable and unchanged, and the load operation is not affected in any way. When the input power is on, the module charges the battery and at the same time outputs the stabilized power to the device. When the input power is cut off, the module automatically switches to battery power supply and provides a regulated power supply to the device. The switching time is zero and does not affect the work of the load. When powered by a battery, the on-board MCU will monitor the battery voltage in real time. When the battery is discharged to the set under-voltage threshold voltage, the power supply will automatically turn off the output and enter a low-power sleep mode. The power supply can only be started when the input is re-powered or the battery voltage returns to the start-up threshold voltage. Please note that the charging part of this module is step-down charging, and the voltage of the input power supply must be 1V higher than the charging cut-off voltage of the battery to be charged. For example, if the battery uses a 12V lead-acid battery, and its charge cut-off voltage is 13.8V, the input power must be a DC power supply between 14.8V and 28V. We can choose a common 19V or 24V power adapter as the input power supply. The module comes with a voltage stabilizing circuit with automatic buck-boosting. Regardless of the input power or battery voltage, the output voltage can be adjusted between 3V and 28V.
Feature
Wide input voltage range: 10～28V High-power regulated output 100W (output 12V, 8.3A) The output is seamlessly switched, and the input is automatically switched to battery power when the input is powered off, the output voltage is uninterrupted, and the switching time is zero. Output voltage: It can be adjusted arbitrarily between 2～28V, or fixed output voltage type (any choice between 2～28V), please specify when purchasing. The default delivery is adjustable Output current: 8.3A, peak value 10A Input current: 15A max Output over-current and short-circuit protection, even if the output terminal is short-circuited, the circuit will automatically protect Support lead-acid battery, lithium ion, lithium polymer, lithium iron phosphate battery Adjustable charging voltage (4-23V) Adjustable charging current (0.5-5A) Three-stage high-efficiency trickle, constant current, and constant voltage charging, automatic stop when full charge, prevent overcharge 4 LED status indicators to realize the status indication of input power, charging, discharging and battery undervoltage Real-time battery voltage monitoring, automatically cut off the output when over-discharged to protect the battery Adjustable battery undervoltage protection threshold voltage Adjustable battery start threshold voltage
Scope of application
Provide backup power for a single 12V power supply computer Access control, security backup power supply Industrial control system backup power supply
Specification
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item
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value
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Input voltage range
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10-28V
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Maximum input current (input fuse limit)
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15A
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Stand-by current
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<200uA
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Operating temperature
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－45～＋85℃
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Storage temperature
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－45～＋125℃
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MTBF
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100,000 hrs @ 50C
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Volume (length X width X height)
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110X50X23mm
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net weight
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70克
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Battery connector
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Lock wire terminal (optional 5557 2P)
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Input/output connector
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Lock wire terminal (optional 5557 4P)
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Charging characteristics Charging voltage: 4-23V continuously adjustable Charging current: 0.5-5A continuously adjustable Trickle charge current: 1/10 of the charge current Charge termination current: When the charge current drops to 1/10 of the set value, the charge ends Charging conversion efficiency: >95% Output voltage regulation characteristics Output voltage: 2-28V continuously adjustable Output current: 8.3A Output power: 100W Conversion efficiency: >95% Output ripple: <80mVp-p Stabilization accuracy: 2%
Details Images