Search Results for: driver circuits for scr
We can use a voltage-controlled current source to implement a laser diode driver. Compared with a a Switched (PWM) drivers, this simple linear laser diode driver provides cleaner drive current. Here is the schematic diagram of the circuit: As the basic of this laser diode driver, this circuit uses a Howland current …
Read MoreFor driving multiple video cables, the suitable component is LT1206 because it has low output impedance, 60MHz bandwidth and 250mA output current capability. But don’t forget about unterminated line effect when driving multiple cables. A crosstalk to other lines caused by a reflected wave is propagate back to the driver because the driver output is …
Read MoreThis is a high-brightness LED-driver circuit. To provide a constant-voltage output we usually use DC/DC regulators. But constant-current output is the one that is needed in LED application. To provide a constant-current output, we can use this circuit. Here is the schematic diagram of high-brightness LED-driver circuit : This circuit uses …
Read MoreThis is a driver circuit for nixie tube. This circuit uses 2N3684 as nixie tube drivers because its Vp is 2-5 volts which is ideally matches TTL-DTL logic level. Compared with bipolar transistor, the JFET is immune to almost all of the failure mechanism found in bipolar transistor. Here is the circuit : …
Read MoreIn many electronics-level adjustments such as LED drivers for LCD panel backlight controls, we can use AD5228. A manually adjustable LED driver is shown on figure below. The voltage across the white LED D1 is set by the AD5228 for the brightness control. A typical white LED with Vf of 3.5 V requires …
Read MoreLM111 comparator can be used o design a relay driver with TTL strobe, this can be used to provide more control of your relay driver. You can control the strobe input using a microcontroller or other digital signal. Here is the schematic diagram of the relay driver: [Source: National Semiconductor Application …
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