AC or Alternating current is a flow of electric charge which periodically reverses. To understand this we need to first look into what exactly is Ac current and what exactly is DC current. Electromagnetism is the study of electric and magnetic fields in combination.ĪC DC converter, as the name suggests ac dc converter converts AC to DC. Magnetism and electricity are related to one another. From higher potential to lower potential, electricity flows. Magnetic fields are produced by the motion of electrical charges, and electricity can also be produced by changes in magnetic fields. Static electricity occurs when charged particles are present on a material's surface. The characteristics and motion of electrically charged particles are the subject of the field of physics known as electricity. Simply put it into a cigarette lighter socket to get a voltage reading.Buy AC to DC Convertor at Best Price in India They have an operating voltage range from 8 to 30 vdc. The LED lettering is red as shown in the photograph. These hand-held digital volt meters are excellent for anyone who has an unmetered battery and wants to easily and quickly check their battery voltage. What we sell here is the real deal!ġ20v 10 amp Power supply, converts 120v to 12VDC.
If it seems "too cheap", then it's probably a fake. Surf the web and you will find thousands of sellers of Pyramid branded power supplies. Consult our Premier and FireFly Heater web pages for specs. Dew Controller settings will govern how much power the heater will draw. Take note that our Premier Brand heaters use more power than any other brand (including our own FireFly Brand) because they produce considerably more heat than any other brand. The larger the heater, the more power it needs. It is the heaters themselves that consume power. The Dew Controllers use almost zero power. Kendrick publishes those specifications for our most popular heater models. for your 12V devices and take note of voltage and current requirements. Thus the need for "head-room".īefore choosing any power supply (AC-DC or Battery), consult the manufacturers specs. Motors use a fair amount of power when slewing at high-speed and "start-up current" is quite high to get the motor moving, after which current draw is less to keep them moving.
CCD cameras have "Peltier Coolers" and some need as many as 4-6 Amps just for the cooler. For most amature astronomers, a 10 Amp Power Supply is the best choice.Īnything that uses electricity to produce heater or cooling needs a considerable amount of power. Ideally, your power supply should have some "head-room", roughly 2X the current (Amps/Watts) that the equipment will draw under normal conditions. Just like a car engine that, for example, is 100HP doesn't mean that you should ask it to produce 100HP 100% of the time or it won't live very long. The power supply needs to be capable of outputting enough current to satisfy the devices that you want to power. A proper AC-DC Power Supply emulates a car battery.Ĭurrent (Amps/Watts) is the other important ingredient. Normal voltage for a battery (when fully charged) will measure 12.9V-14.0V. Almost all astronomy equipment was designed to run from a car battery, but a car battery that measures only 12V is a dead battery. "12V" really means a measured voltage of 13.8V. What to look for when shopping for an AC-DC Power Supply
12 volt power converter ac to dc portable#
See Power Packs for more information on the Portable Power Systems we offer. We also build portable 12 volt power packs and offer other power solutions that can be used with all your astro equipment that is used in the field. Also available is a 25 Amp model (see below). Pictured to the right are our 5 Amp and 10 Amp Regulated 120 volt to 12 volt DC power supplies which are excellent for operating our systems from a wall socket. If you want to run the system from a wall plug, you will need a 120 volt to 12 volt DC "Regulated" step down power supply with a minimum output of 5 amps. If you are using a battery to run the system, we recommend a 5 amp hour battery as a minimum. Our dew control systems require 12 volts DC.
US Prices are approximations based on the average exchange rate of the day. Or financial institution when your order is processed. The exchange rate will be determined by your credit card company
0 kommentar(er)
