Power Supplies

Wholesale Power Supplies Supplier!

 

Established in 2016, PH Tool and Test Equipment Inc strives to continually improve itself and offer the best value for its customers. We offer our customers several practical, efficient and cost effective solutions for their business or projects' test equipment needs. Whether you need to rent & buy test equipment, repair test equipment, sell or trade equipment, we are committed to providing superior customer service and high quality electronic test equipment.

 

 
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Why Choose Us

Quality service

We offer our customers several practical, efficient and cost effective solutions for their business or projects' test equipment needs.

Well appointed

We stock a comprehensive inventory of equipment and can use our extensive network to find you those hard to get items.

Rich experience

We have more than years of industry experience and a team of experienced engineers and technicians to ensure consistent precision and high quality of our products.

Professional team

The company is in possession of numbers of senior engineers and has abundant technique power, well conditioned equipment and technology comes to perfection.

 

Advantages of Power Supplies

Safety: The power supply comes with built-in protection features such as overload protection and short-circuit prevention. These features protect the power supply and connected devices from damage.

 

Reliability: High-quality power supplies are designed to last and withstand harsh environmental conditions. This reliability is critical for applications where downtime is not an option.

Stable Output

The power supply provides a smooth, reliable DC voltage with minimal ripple.

Enhanced Performance

The power supply ensures better device performance and lifespan.

Versatility

Suitable for sensitive electronic devices that require clean power.

 

Application of Power Supplies
 

Medical: Power supplies are designed for medical power applications. Medical applications typically require highly conditioned and isolated output.

 

Telecommunications: Power supplies are used for powering telecommunications equipment.

 

Instrumentation: Power supplies are used for powering instrumentation devices such as oscilloscopes, meters, etc.

6812A Agilent AC Power Source / Analyzer 750 VA

 

6812C Agilent Performance AC Power Source, 750 VA, 300 V, 6.5 A

Military: Power supplies are designed for military power applications. Most products for military applications must meet minimum performance specifications designated by the military.

 

Consumer Electronics: Smartphones, laptops, and televisions all rely on power supplies to function. These devices require precise voltage and current regulation to operate efficiently and safely.

 

Industrial Equipment: Machinery in factories and production lines depends on robust power supplies to ensure continuous operation. Any interruption can lead to significant downtime and financial losses.

 

Specification

 

Model

E3649A Agilent 100W

Output ratings (@ 0 °C to 40 °C) 2 outputs

Range 1: 0 to 35 V / 1.4 A

Range 2: 60 V / 0.8 A

Programming accuracy (@ 25 °C ± 5 °C), ±(% output + offset)

Voltage: < 0.05% + 10 mV (< 0.1% + 25 mV for output 2 of E3646 / 47 / 48 / 49A)

Current: < 0.2% + 10 mA

Ripple and noise 20 Hz to 20 MHz

Normal mode voltage: < 8 mVpp / 1 mVrms

Normal mode current: < 4 mArms

Readback accuracy (@ 25 °C ± 5 °C), ±(% output + offset)

Voltage: < 0.05% + 5 mV (< 0.1% + 25 mV for output 2 of E3646 / 47 / 48 / 49A)

Current: < 0.15% + 5 mA (< 0.15% + 10 mA for output 2 of E3646 / 47 / 48 / 49A)

 

Components of Power Supplies

 

Transformer

This component steps up or steps down the input voltage to the desired level. It’s essential for converting mains electricity into a usable form for electronic devices.

01

Rectifier

Converts alternating current (AC) to direct current (DC). This is crucial because most electronic devices require DC to operate.

02

Filter

Smooths out the rectified voltage, removing any ripples or fluctuations. A stable voltage is necessary to prevent damage to sensitive electronic components.

03

Regulator

Ensures the output voltage remains constant despite variations in input voltage or load conditions. This is vital for the reliable operation of electronic circuits.

04

Protection Circuitry

Includes components like fuses and circuit breakers that protect against overloads, short circuits, and other faults.

05

 

 
Types of Power Supplies
 
01/

Linear Power Supplies:
Linear power supplies use a series of transformers, diodes, and regulators to output input energy as direct current (DC).They offer good regulation and low noise levels.

02/

Switching Power Supplies:
Switching power supplies use switching circuits that provide high energy efficiency.It uses high-frequency switching to convert AC input to DC.They can be lighter and more compact.

03/

Constant Current Power Supplies:
Constant current power supplies provide a constant current level at their output.They are widely used in fields such as LED lighting, electroplating and laboratory applications.

04/

Constant Voltage Power Supplies:
Constant voltage power supplies provide a constant voltage level at their output.They are used as power sources for many devices such as electronic devices, computers and mobile phones.

05/

Programmable Power Supplies:
Programmable power supplies have features that allow users to adjust and program the output voltage and current as they wish.They are used in applications such as laboratory testing and electronic prototyping.

06/

Backup Battery Sources:
Backup battery sources are used to provide electrical energy during power outages.They are called UPS (Uninterruptible Power Supply) and are used for critical systems such as computers and servers.

07/

Portable Chargers:
Portable chargers are used to charge cell phones, tablets, and other portable electronic devices.They are usually battery-powered and power devices via USB or other ports.

08/

Industrial Power Supplies:
It is designed for heavy-duty applications such as industrial power supplies, industrial automation, and production systems.They offer high power capacity and durability.

 

 

FAQ

 

Q: What's the shipping method?

A: By express way.such as fedex,dhl,tnt and so on; by air;by sea. Shipping cost is decided by shipping ways& product actual weight &volume and your detailed address.

Q: What's the Payment method?

A: We support various payment way(T/T,Visa card,Western union, Moneygram,Secure payment-Escrow,etc).

Q: Can we print our own brand or logo on your products?

A: Yes, it is our pleasure to be one your OEM manufacturer in China to meet your OEM request.

Q: How long is the deliever time?

A: It usually takes 7-10 days for stock orders and 25-30 days for large orders.

Q: What happens when a power supply goes bad?

A: Transient Failures: If a PSU fails suddenly, it may produce voltage spikes or surges. These spikes can damage sensitive components such as the motherboard, CPU, RAM, and graphics card. Overvoltage Conditions: In some cases, a PSU may output higher voltages than intended due to internal failures.

Q: How to find the correct power supply?

A: To determine the correct PSU, consider all the power requirements of your components. Combine the total wattage with some extra headroom, and choose a PSU with a wattage rating that exceeds the total power consumption to ensure stability and future upgrades.

Q: What device is a power supply?

A: A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters.

Q: What is the common cause of power supply failure?

A: One of the most common power supply problems is overheating. PSUs can get hot, especially if they're under a heavy load, and if they get too hot, they can shut down or even fail completely. Overheating can be caused by a variety of factors, including poor ventilation, dust buildup, or a faulty fan.

Q: How do I check my power supply current?

A: Connect in series: Place the multimeter probes in series with the circuit where you want to measure current. Power on the circuit: Turn on the circuit, and read the value displayed on the digital screen. Record the reading: If needed, utilize data logging features to save the reading.

As one of the leading power supplies manufacturers and suppliers in China, we warmly welcome you to buy high-grade power supplies in stock here from our factory. All our products are with high quality and competitive price. For more information, contact us now.

Power Supplies

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