The coil can have one end connected directly ground or to a power supply – the most common method used to is to connect to a power supply so that a grounded transistor or FET can be used. Transistor DrivingĪ common method of driving reed relays is to use either a bipolar transistor or an FET to directly drive the coil using an open collector/source. So when reed relays are used on PCB some care should be taken to avoid them being excessively close to parts that might generate a strong field, including disc drives and large inductors. However, it does not make them immune to magnetic fields generated by EMR relays or by other reed relays that do not include magnetic screens (or include ineffective screens). For Pickering Electronics Reed Relays the inclusion of a magnetic screen ensures they can be densely packed together. Reed switches are operated by magnetic fields provided by coils and in the case of energize to break (Form B), sometimes internal bias magnetics within the reed relay assembly. Driving an inductive load has the opposite effect from driving a capacitive load. But when using power MOSFETs to switch either inductive or capacitive loads some form of protection is required to prevent the MOSFET device from becoming damaged. 200 – 3W (Form C) 20W (Form A) up to 5GHz, Mercury 50W Above shows a very simple circuit for switching a resistive load such as a lamp or LED.
MOSFET COIL DRIVER CIRCUIT SERIES
98 – 3W (Form C) 20W (Form A) CMOS Direct Drive.97 – Dry 3W (Form C) 10W (Form A), Mercury 50W.119 – 10W 1kV Switching, 3kV Stand-off PCB Mini SIP.Smart gate driver architecture for Gen-3 10 kV SiC MOSFET module. 104 – 20W 1kV Switching, 3kV Stand-off PCB SIP A PCB-Rogowski coil design based on Partial Element Equivalent Circuit (PEEC) method.67 & 68 – 50W 10kV PCB/Flying Lead Connections.62 & 63: 15kV PCB/Chassis Mount Push On Terminals.60 & 65 – 15kV PCB/Chassis Mount Solder Terminals.131 – 10W 1.5kV Stand-off PCB Smallest HV SIP.119 – Up to 3KV Stand-off – Mini High Voltage.118 – High Coil Resistance – Small Size.102 – Up to 20W Coaxial RF/High Speed Digital.100HC– 3A High Carry Current / High Coil Resistance.100HV – HV up to 3kV – High Coil Resistance.Single-in-Line (SIL/SIP) Relays Series 100 – 110.10 Key Benefits of Pickering Reed Relays.