BK Precision 1744A DC Power Supply

The BK Precision 1744A is a versatile DC power supply designed for a wide range of technical applications, including engineering labs, service shops, and manufacturing test environments. It offers a continuously variable output voltage from 0 to 35 VDC and a current output from 0 to 10A. The unit is capable of operating in both constant voltage (CV) and constant current (CC) modes, with automatic crossover between them.

### Technical Specifications

**Electrical Characteristics**

* **Output Voltage:** 0 to 35 VDC, adjustable via coarse and fine controls.
* **Output Current:** 0 to 10 A.
* **Constant Voltage (CV) Operation:**
* **Line Regulation:** ≤ 0.2% + 2 mV (for 108-132 VAC input).
* **Load Regulation:** ≤ 0.04% + 2 mV (no load to full load).
* **Recovery Time:** ≤ 100 µs typical.
* **Ripple Voltage (RMS):** ≤ 1 mV.
* **Temperature Coefficient:** < 300 PPM/ºC (for 0º to +40ºC). * **Constant Current (CC) Operation:** * **Adjustable Current Limits:** 5% to 100% of maximum current. * **Current Regulation (Line):** ≤ 0.4% + 5 mA (for 108-132 VAC input). * **Current Regulation (Load):** ≤ 0.4% + 5 mA. * **Current Ripple:** < 3 mA typical. * **Metering:** * **Voltmeter:** Analog display, range 0-40V, accuracy +2.5%. (Note: The 1745A model has a 4-digit LED display for voltage.) * **Ammeter:** Analog display, Hi Range 0-11A, Lo Range 0-2.2A, accuracy +2.5%. (Note: The 1744A has a High-Low switch to select current ranges for improved resolution at lower currents.) (Note: The 1745A model has a 4-digit LED display for current.) * **Power Requirements:** * **Domestic:** 120 VAC ±10%, 60 Hz. * **International:** 120, 220, 230, 240 VAC, 50/60 Hz. * **Power Consumption:** Approximately 560 Watts or less at full load. * **Protection:** Reverse polarity protection, current limiting, fully overload protected.**Interfaces*** **Output Terminals:** Positive ("+") (Red), Negative ("-") (Black), and Ground (GND). The output is isolated, allowing either polarity to be floated or grounded.**Physical Characteristics*** **Dimensions (H x W x D):** 5.7" x 10.5" x 15" (145 x 267 x 381 mm). * **Weight:** Not specified in available documentation. * **Cooling:** Designed to operate continuously at full load without overheating.**Environmental Specifications*** **Operating Temperature:** 0º to +40ºC at < 75% R.H. * **Storage Temperature:** -15º to 70ºC at < 85% R.H.**Features*** **Dual Outputs:** The model 1744A offers a single output channel. [Short description] (Note: The short description mentions "single-channel, triple output DC power supply", however, technical specifications consistently describe a single output channel. It is likely referring to the 1745A model which has dual LED displays.) * **Series/Parallel Configuration:** Two units can be connected in series for higher voltage output or in parallel for higher current output. * **Output ON/OFF Switch:** Allows the output to be turned off without powering down the entire unit. * **Output Shorting Button:** Facilitates setting the current limit by momentarily shorting the output terminals. * **Analog Meters:** Continuously monitor voltage and current output. * **Mode Indicators:** Red LED for Constant Current (CC) mode, Green LED for Constant Voltage (CV) mode. * **Coarse and Fine Controls:** For precise adjustment of voltage and current. * **Reliability and Durability:** Designed for continuous operation and built for longevity. * **Low Ripple:** Exhibits low ripple voltage characteristics.**Compatibility*** **Power Input:** Compatible with 120 VAC (domestic) and 120/220/230/240 VAC (international) power sources. * **Series/Parallel Operation:** Can be integrated with other BK Precision 1744A units for expanded output capabilities.**Accessories*** **TL 5A Hook-Up Cable Set:** 4mm Banana plug to alligator clip, 5A rating, 40" (1.0m) length. * **TLPS Power Supply Test Leads Set:** Includes medium and large insulated alligator clips, black and red components, and a sense lead.Why Choose Aumictech for the BK Precision 1744A? At Aumictech, we specialize in supplying high-end electronic test and measurement equipment. Whether you need reliable DC power for product development, precise voltage and current control for laboratory experiments, or robust performance for manufacturing test stations, our team ensures the BK Precision 1744A delivers maximum performance for your application.