call diagram...

Hello All! Doorbells systematically burn out due to too much long press the button. The circuit of such a call is a solenoid, when you press the button it hits one side, and when released - to another... I think I can change the diagram like this: +----+ +--+ R1 +--+ | +----+ | | | +------+ | C1 | / | | | || | | | | || ) 220v | bridge | ===C2) solenoid | | | ) | | +------+ It is planned that as a result he will hit 2 times at once, and if you hold the button for a long time it will not burn out. Will it work? Best regards, Evgeniy.

Hello Eugene! Somehow Wed 4 Feb 2004 at 23:46:58 Eugene Palenock wrote All on the topic 'call pattern...' EP> Doorbells systematically burn out due to too much EP> long press of the button. The circuit diagram of such a call is a solenoid EP> when you press the button, it hits one side, EP> and when released - to another... EP> I think I should remake the diagram like this: EP> +----+ EP> +--+ R1 +--+ EP> | +----+ | EP> | | EP> +------+ | C1 | EP> / | | | || | EP> -+--/ -----+ ~ + +-----+----||----+--+ EP> | | | || ) EP> 220v | bridge | ===C2 ) solenoid EP> | | | ) EP> -+---------+ ~ - +-----+------------+ EP> | | EP> +------+EP> It is planned that as a result he will hit 2 times EP> immediately, EP> and if you hold the button for a long time, it will not burn out. EP> Will it work? Sorry it's late, but just caught my eye today: Radio magazine, #6, 1975. Non-contact limiter. The device (see diagram) works like this. When you press the Kn1 button, the electric bell Zv1 rings, and capacitor C1 is charged through diode D1. When the capacitor is charged up to the amplitude value of the network, the electric bell stops ringing. For re- call the button must be released so that the charged capacitor can be discharged through resistor R1, and press it again. With a 20 µF capacitor and a resistor 15 kOhm, the duration of the ringing sound is about 1 s., the duration of pauses (charging time capacitor - 2s. V. Daukshta. Riga. Zv1 D1 /^^^^^^\n 0----[ ]-----|>|------+----------+ | | + | | C1 ===== +---+ 220V 20uF x 400V | | | R1 | | / | 15 kOhm | | | Kn1 | +---+ | | / | | 0----/ ----------------+----------+P.S. Maybe someone else will find it useful... Bye, Eugene Take care of yourself.