Circuit and Working Fig. 2 shows the circuit diagram of a long-duration timer using a supercapacitor. The circuit comprises a centre-tapped transformer (X1), four rectifier diodes (1N4001, D1-D4), a dual op-amp (LM358, IC1), a transistor (2N3904, T1), a 5V SPDT relay, two LEDs ...
A circuit breaker for a power controller integrated circuit is described where an analog timer and a digital timer are provided in parallel. The digital timer provides a fixed, on-chip maximum delay during an overcurrent condition to ens... WA Burkland,Adolfo A. Garcia - US 被引量: 80发表...
A solid-state timer is provided using a field-effect transistor connected to be biased on and during the timed period held off by a prior charged capacitor. The operating condition of the field-effect transistor determines the operative status of a second transistor connected to a relay. A tran...
On-off timer circuit for use in DC-DC converterdoi:US8283908 B2US
AC220V power off Switch Time Delay Circuit Time Delay Relay for insert card to power on Model Selection Table Model Function Rated supply voltage Contact Delay range ZHRT1-DS Power off switch AC110V AC220V 1 NO 0.1s~10s,10s-100s,1m-10m 0.1h-10...
timer circuits dc 5v delay relay timer switch adjust 5v real time timing delay timer relay module xy 018 relay time delay xy j05 delay module timer solid state relays time delay relay time relay circuit Hot Search dual timer module electronic time delay relay time delay relay bms usb 10s zb2...
A delay before turn off circuit can be useful for any circuit that needs to be on only for a short period of time, such as a timer. Say you want a circuit to only be on for 10 seconds and then stop. Then this circuit has perfect application. ...
AC 220V Trigger Delay Switch Turn On Off Board Timer Relay Module PLC Adjustable Integrated Circuits No reviews yet Shenzhen Qinda Electronics Co., Ltd.5 yrsCN Previous slideNext slide Previous slideNext slideKey attributes Other attributes Place of Origin China Shipment Terms DHL MOQ Sample ...
(3.0V-24V) signal with no common ground system Output Capability: Controls DC or AC within 30v 5A or 220v5A Timing Range: 0.1 seconds to 999 minutes continuously adjustable Availability: Over 10 million times Features: |Scr Relay|Using A Transistor As A Relay|What Are Electrical Relay| **...
Select now Specification(2) MICROTYPE-C Shipping Start orderAdd to cart Protections for this product Delivery via Expect your order to be delivered before scheduled dates or receive a 10% delay compensation Secure payments Every payment you make on Alibaba.com is secured with strict SSL encryption...