Power supplies or power supply units (PSU) are devices that produce electrical power and provide reliable electrical current for powering electronics, machinery and devices for both industrial and commercial use. Power supplies receive power, the input, from a source such as a battery or wall socket, invert, convert or adapt it and then provide an output power to an electronic device.
Quail Electronics, Inc.
At Quail Electronics, we are your power cord specialists. Our power supplies consist of green dot cords, high voltage cords, North American and international cords, specialty cords, plus adapters, plugs and strips. If you require something else, Quail Electronics can manufacture a custom cord to meet your specific needs. Call us today for your product needs.
Since 1950, Georator Corporation has been known for their reliability and longevity. We offer complete lines of power supplies for testing electrical products to be exported to and used in European and Asian countries as well as testing aircraft and shipboard 400 Hz equipment. They also offer additional products to make sure you have the perfect solution for your needs.
Santa Clara, CA
AnalogicTech offers the right solutions, technology and people, committed to engineering innovation and the development of advanced power supplies. Dedicated to quality and customer satisfaction in every area of business, we set ourselves apart from all competition. We are ISO9001 certified. Visit our website today for a quote on your next project.
Staco Energy Products Co.
Staco Energy offers outstanding equipment, manufacturing a variety of cordsets, electric plugs, molded cable assemblies and cords. Variable transformers, voltage control systems, UPS equipment, voltage regulators, power conditioners and power supplies are also available. With 70 + years experience in standard and custom power products, let us provide you reliable solutions.
Maxwell® Technologies, Inc.
San Diego, CA
Maxwell Technologies designs and manufactures power systems through research and product development. Our power supplies product line includes capacitors and microelectronics serving the consumer electronics, automotive, military and other industries. We are committed to cost and energy efficient, environmentally-conscious product solutions that extend the limits of current conventions.
Hitec Power Protection
Hitec Power Protection is a worldwide manufacturer of diesel UPS power supplies, also known as CPS systems. If your operation demands protection of the integrity of your data, processes or systems, this is the clean and reliable UPS you need. We have a strong foundation of engineering that can tailor make cost-efficient solutions for you. Visit our website today.
- The highest AC or DC voltage that may be applied from the input, output and/or chassis of a power supply.
- Operating a newly manufactured power supply, usually at rated load, for a period of time in order to force early failures or other latent defects of the component before the unit is delivered to a customer.
- Noise that is typical of DC output and return lines with respect to input ground.
- The voltage output from a constant current power supply.
- The removal of heat in a power supply by convection, forced air, radiation or liquid. Heat comes from regulation, transformation, filtering and rectification.
- The percent of voltage change at one output of a multiple output power supply resulting from the load change on another output.
- An overload protection circuit, which controls the highest output current of a power supply to safeguard the power supply or the load.
- The projected lifetime of a power supply during which it will run at its stated specifications.
- Also referred to as "ripples," it is the noise measured between the DC output and the output return.
- With operating parameters including line, load and ambient temperature held constant, it is the change in output voltage, following a warm-up period, over a certain period of time.
- The ratio of power in terms of the input power against the output power. Efficiency is measured at full load and nominal line conditions.
- Also known as "radio-frequency interference (RFI)," it is unwanted high frequency energy conducted through the input or output lines of switching power supplies or radiated through space. EMI is caused by the switching transistors, output rectifiers and zener diodes.
- A current limiting circuit that, when under overload conditions, will gradually decrease the output current to a specified minimum current level under a direct short circuit.
- An electrical connection to earth that has a zero voltage or another conductor connected to earth.
- The capability of remotely switching off the output power of a power supply.
- A low-pass or band-reject filter used to decrease the noise fed to the supply. Input line filters are located at the input of a power supply and may be external.
- The highest AC or DC voltage that can be continuously run from a power supply chassis or from input to output.
- Altering a power supply output voltage, either higher or lower from its minimal setting, in order to confirm the system performance margin in respect to the supply voltage. Margining is typically done electrically via a system generated control signal.
- The least amount of load current or power that needs to be drawn from the power supply in order for the supply to meet its performance specifications.
- A feature of a converter such that it continues to provide voltage to a load at a set upper limit without turning off and without necessitating a reset when the overvoltage event ceases.
- A circuit that either shuts down the power supply or shorts the power supply to ground if an overvoltage condition occurs.
- The connection of the outputs of multiple power supplies with the same output voltage that are designed to share a load. The parallel operation generates a higher output current than would be available from a single supply.
- The absolute highest output power that a power supply can create without immediate damage. Typically, peak power is much higher than the continuous reliable output capacity and ought to be utilized rarely.
- A signal from the power supply interface that relays a warning that the input voltage is not sustaining full power regulated output.
- A protection circuit that prevents damage to the power supply if a reverse voltage is applied at either the output or input terminals.
- A conductive path to earth intended to safeguard people from electrical shock by shunting away any dangerous currents that could happen from accident or malfunction.
- Also known as "warm up time," it is the time a converter needs to start running within specification after proper power has been applied.