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Simple Alarm Circuit using 12C509

alarm circuit diagrams Simple Alarm Circuit using 12C509, 2N7000, 78L05

InPowered battery charger circuit

InPowered battery charger circuit diagram schematic 6V-12V using NE555, LM7812, 2SA671, 1N4002, BC549 auto battery charger circuit On a lithium-ion cell, 3.8V/cell indicates a state-of-charge of about 50%. It must be noted that utilizing voltage as a fuel gauge function is inaccurate because cells made by different manufacturers produce a slightly different voltage profile. This […]

Differential Cascode circuit and driver

Differential Cascode circuit and driver

hspd 12 piv circuit using 2N3439

hspd 12 piv circuit using 2N3439 hspd 12 piv circuit using 2N3439 R1 …………. 33K ohm R2 …………. 100 ohm VR …………. 1K ohm c1 …………. 50uF – 450V TR1 ………… 2N3439 TR2 ………… 2N3439 T1 Transformer Pri: 110 – 220V Sec: 0 – 220V 5mA

Power supply protection

power supply power supply Power supply protection using MJ2955, 2N6049, MC7800

Charge Coupled Mosfet Relay Circuit

Charge Coupled Mosfet Relay Circuit using 74C14, IRFZ48Z

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