![]() (Though worth noting here is that BetaFPV rates the JST-PH connector at 4.5A.) The BT2.0 has a similar shape to the Amass XT30 and XT60 connectors that are common on larger models. The BT2.0 connector was designed specifically for micro quads. Data transmission is a low-current application, so the connector only has a current rating of 2A. Even though this was a big step forward, JST-SH was designed for “high-density connection of internal wires to PC boards”. This connector has 2mm pin spacing, so it’s sometimes referred to as the “PH2”, “PH 2.0”, or “Powerwhoop” connector. Now, JST-PH is the current standard for micro quads. It quickly became obvious that the tiny connector was restricting power to the quad, so pilots began upgrading to the larger JST-PH connector. This is an extremely small plug with only 1.25mm spacing between the two pins. ![]() The original Blade Inductrix used a JST-SH connector for its battery. This loss in power also reduces flight times. Losing power this way causes a drop in voltage, and when less voltage is available motors can’t produce as much thrust. Finally, the more current you put through a connector, the higher the resistance will become.Ī higher resistance means that more of the power being drawn through the connector is lost (converted into heat). Resistance also increases when oxidation occurs on the surface of a connector. The total surface area of a connector plays a big role, and a smaller role is played by the amount of pressure between the two sides. The amount of resistance in a connector comes from many factors such as electrical and chemical properties of each material. In electrical systems, this is referred to as Contact Resistance and is often a major source of headache for system designers. ![]() This offers us a great deal of convenience-there’s no need to solder batteries to change them-at the cost of greater electrical resistance. Instead of welding them together, we rely on electrical conductors to physically touch each other. Soldering components and wires together effectively makes them one solid piece, and this keeps the resistance near zero when electricity moves from one component to another. Most of these resistances are so small that they have almost no effect on the circuit. This happens within all wires, components, and traces on the circuit board. Physical connectors are often the weakest links in delivering power, so their design matters a lot.Įvery part of an electrical system introduces some amount of resistance. ![]() So far, only the Meteor65 and BetaFPV’s HX100 “toothpick”-style quad use the connector, but there are sure to be more in the future.īetaFPV released a host of other BT2.0 components, such as batteries, bare connectors, pigtails, adapters, and a battery charger/voltage checker. The BT2.0 battery connector was introduced by BetaFPV on the Meteor65 Brushless Whoop in late 2019. ![]()
0 Comments
Leave a Reply. |