How to choose the right power supply for your transceiver?
Are you looking for a power supply for your transceiver and are you not sure what to look for? Then you have come to the right place. Whether you are a radio amateur or work in agriculture, transport or security — the right power supply is crucial for stable and reliable communication.
What is a power supply and what do you use it for?
A power supply, also known as a power supply, is an electrical device that supplies energy to a connected electrical load (such as a transceiver). The main function of a power supply is to convert power from a source (such as the mains, a battery or a generator) to the correct voltage, current and frequency required by the connected equipment.
Some power supplies are standalone devices, while others are built into electronic systems, such as computers or consumer electronics. In addition to providing power, power supplies can also perform additional functions, such as:
- Limiting current to safe levels
- Disconnect in case of electrical faults
- Suppression of interference or voltage peaks (power conditioning)
- Power factor correction
- Store energy for use in the event of a power outage (such as a UPS)
There are different types of power supplies:
- Regulated power supply: Keeps voltage or current constant, even when the load changes.
- Unregulated power supply: Voltage or current may fluctuate depending on load or input voltage.
- Adjustable power supply: User can manually adjust output voltage or current.
- Isolated power: Output is electrically isolated from input, for added safety.
Linear or switching power supply: what's the difference?
When using a transceiver, it is generally advisable not to use a linear power supply unless it is equipped with an effective OVP (overvoltage protection). Why? When a linear power supply fails, it often outputs a higher than normal supply voltage. This can cause serious damage to expensive equipment such as transceivers.
A switching power supply with good filtering and protection is in many cases a safer and more efficient choice.
Linear power supply
A linear power supply provides a stable, low-noise output voltage. Perfect for situations where electromagnetic interference (EMI) needs to be kept to a minimum. However, they are often larger, heavier and less energy efficient than their counterparts.
Applications:
- Communication equipment
- Medical systems
- Low noise amplifiers
- Signal processing and measuring equipment
- Laboratory applications
Switching power supply
A switching power supply is more compact and efficient. They are popular because of their high power density, but can also cause electrical noise. When used in sensitive communication equipment, good filtering is essential.
Applications:
- R&D and production environments
- High power applications
- Industrial processes such as galvanizing
- Network and communication systems
What should you pay attention to when choosing a power supply?
First, you need to ask yourself whether you want a power supply with digital or analog meters. This is often a matter of personal preference. Digital power supplies usually offer a clear, easy-to-read display, which is nice for those who like precision and clarity. Analog power supplies, on the other hand, are often appreciated for their authentic, old-school look and direct visual feedback. From that choice, you can then go through the following points to find the right power supply:
1. Power requirements
Check the power consumption of your transceiver, including any peak loads. A power supply should always be able to supply a little more than your equipment requires at most.
2. Type of power supply
If you work in an environment where noise-free operation is essential, choose a linear power supply. If efficiency and space saving are the main concerns, a switching power supply is more suitable.
3. Continuous load
Pay close attention to the maximum continuous current of the power supply. Preferably choose a power supply that can handle 20-30% more than you need on average.
4. Reliability
Go for quality. Choose a power supply from a brand with a good reputation and a solid warranty.
5. Cooling
A built-in fan or good passive cooling will extend the lifespan and increase the reliability of your power supply.
6. Budget and offers
Don't let price be the only factor. A reliable power supply will pay for itself in durability and trouble-free use.
Find the right nutrition at Deltron
At Deltron you will find a wide range of linear power supplies and switching power supplies from renowned brands. Whether you are a professional user or a fanatic hobbyist, we are happy to help you make the right choice.
Do you have any questions or would you like some tailor-made advice? Please feel free to contact us
