Parallax 7.5 VDC 1.6 Amp Power Supply

The Parallax 7.5 VDC 1.6 Amp Power Supply is a regulated DC power supply unit designed to deliver stable 7.5 volts at 1.6 amperes output, providing 12 watts of continuous power for embedded systems and microcontroller projects. Electronics engineers, robotics developers, and educational institutions rely on this supply to power Parallax microcontroller boards, sensors, and peripheral devices with consistent voltage regulation and thermal protection. This power supply solves the critical problem of voltage instability and inadequate current delivery that can cause microcontroller resets, sensor malfunction, and project failure in prototyping and production environments.

Product Overview

The Parallax 7.5 VDC 1.6 Amp Power Supply utilizes a linear regulation topology that maintains constant output voltage across varying load conditions and input line fluctuations. The internal voltage regulator circuit employs feedback control mechanisms to suppress ripple voltage below 100mV peak-to-peak, ensuring clean power delivery essential for noise-sensitive analog circuits and precision measurements. The supply incorporates thermal shutdown protection that automatically disconnects power when internal junction temperature exceeds safe limits, preventing component damage during fault conditions or prolonged high-current operation. The compact form factor with standard barrel connector interface makes it universally compatible with Parallax development boards, Arduino shields, and breadboard-based prototypes without requiring custom adapters.

This power supply is engineered specifically for educational and professional embedded systems development where reliability and consistency are paramount. The 1.6 ampere maximum current rating provides sufficient headroom for powering multiple peripheral devices simultaneously, including servo motors, LCD displays, sensor modules, and communication interfaces. The regulated output ensures that voltage remains within the safe operating range of 5V to 9V input specification for most microcontroller boards, eliminating the risk of component overvoltage damage. Built-in current limiting prevents catastrophic failures during accidental short circuits, making this supply ideal for classroom environments and iterative development workflows where mistakes are inevitable.

Key Specifications

Specification	Details
Product Type	Regulated DC Power Supply
Brand	Parallax Inc.
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp
Output Voltage	7.5 VDC regulated
Maximum Output Current	1.6 Amperes
Power Output	12 Watts continuous
Output Ripple Voltage	Less than 100mV peak-to-peak
Connector Type	Standard barrel connector (5.5mm outer, 2.1mm inner)
Input Voltage Range	100-240 VAC, 50/60 Hz
Thermal Protection	Automatic shutdown above 85 degrees Celsius
Load Regulation	Better than 2 percent from no-load to full-load

Key Features

• Precision voltage regulation maintains output within 2 percent tolerance across full load range, ensuring reliable microcontroller operation and accurate sensor readings
• Current limiting protection automatically reduces output current during short circuit conditions, preventing component damage and eliminating need for external fuses
• Low output ripple voltage below 100mV peak-to-peak reduces noise coupling into analog circuits and improves signal integrity for precision measurements
• Thermal shutdown protection automatically disconnects power when internal temperature exceeds safe limits, preventing catastrophic failure during sustained overload conditions
• Universal barrel connector compatibility eliminates need for custom cables and adapters, enabling immediate use with Parallax boards and standard development platforms
• Wide input voltage range of 100-240 VAC accommodates international power standards, making this supply suitable for global deployment and educational institutions worldwide

Applications and Use Cases

• Powering Parallax BASIC Stamp microcontroller boards in robotics competitions and educational laboratories where consistent voltage is critical for servo motor control and sensor interface stability
• Supplying regulated power to Arduino-compatible development boards with multiple peripheral shields including motor drivers, wireless modules, and sensor arrays in IoT prototyping projects
• Providing stable power for breadboard-based circuit development and experimentation where accidental short circuits are common and thermal protection prevents repeated component replacement
• Delivering clean power to analog sensor conditioning circuits and precision measurement systems where output ripple voltage must be minimized to achieve high signal-to-noise ratios
• Supporting embedded systems in educational maker spaces and electronics clubs where multiple students work simultaneously and need reliable, protected power supplies for learning projects
• Powering portable robotics platforms and autonomous vehicles where compact form factor and sufficient current capacity enable simultaneous operation of microcontroller, motor drivers, and communication modules

How to Use

To set up your Parallax 7.5 VDC 1.6 Amp Power Supply, first verify that your target device accepts 7.5 VDC input by checking the device specifications or labeling on the power input connector. Locate the standard barrel connector on your microcontroller board or development platform and align the power supply connector with the socket, ensuring the center pin (positive terminal) inserts fully into the inner contact and the outer sleeve makes complete contact with the outer ring. Plug the power supply into a standard 100-240 VAC wall outlet with proper grounding, and observe that the indicator LED illuminates to confirm normal operation and proper voltage regulation.

When connecting multiple peripheral devices, calculate the total current draw by summing the maximum current specifications of all connected components to ensure the total does not exceed 1.6 amperes. If your application requires more than 1.6 amperes, use this supply only for the microcontroller and critical control circuits, and source additional dedicated power supplies for high-current peripherals like motor drivers or wireless transmitters. Position the power supply in a well-ventilated location away from moisture and direct sunlight, as the internal voltage regulator generates heat during operation. If the supply becomes warm to the touch during normal operation, this is expected behavior, but if it becomes uncomfortably hot or the thermal shutdown activates repeatedly, reduce the load current or allow the supply to cool before resuming operation.

Frequently Asked Questions

Can I use the Parallax 7.5 VDC power supply with devices rated for 5V input?

No, you should not use this 7.5V supply with 5V devices as the overvoltage will damage components rated for lower voltage. However, if your device has a wide input voltage range such as 5V to 12V, then 7.5V operation is acceptable. Always verify your device specifications before connecting. If you need 5V output, consider using a separate 5V regulated power supply or a voltage regulator module to step down the 7.5V to 5V safely.

What is the difference between this supply and a simple battery pack for powering microcontroller projects?

This regulated power supply maintains constant 7.5V output regardless of load changes, whereas battery voltage gradually decreases as the battery discharges, causing microcontroller behavior to change over time. The regulated output also provides cleaner power with minimal ripple voltage, which is essential for accurate analog-to-digital conversions and reliable sensor operation. Additionally, regulated supplies are more cost-effective for continuous use compared to frequent battery replacements, and they eliminate the environmental impact of disposable batteries in educational and professional environments.

How much current can I safely draw from this power supply for extended periods?

The Parallax 7.5 VDC 1.6 Amp Power Supply is rated for continuous operation at up to 1.6 amperes, meaning you can safely draw the full 1.6 amps indefinitely without damaging the supply. However, sustained operation near maximum current will generate significant heat inside the regulator circuit. For best longevity and reliability, keep your average load current below 1.2 amperes and ensure adequate ventilation around the power supply. If your application requires sustained currents above 1.2 amperes, monitor the supply temperature and allow cooling periods to prevent thermal shutdown activation.

Is this power supply suitable for outdoor robotics projects or harsh environments?

The Parallax 7.5 VDC power supply is designed for indoor use and is not rated for outdoor, wet, or dusty environments. For outdoor robotics applications, you should house the power supply in a weatherproof enclosure with proper ventilation to prevent moisture ingress and dust accumulation. Additionally, consider using shielded cables and ferrite core filters on the power lines to minimize electromagnetic interference from outdoor RF sources and switching noise from other equipment in the vicinity.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy Parallax 7.5 VDC 1.6 Amp Power Supply Online in India

Purchase the Parallax 7.5 VDC 1.6 Amp Power Supply online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Parallax 7.5 VDC 1.6 Amp Power Supply with fast shipping and expert support.

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