Power Supply Circuits

Exceed-RC’s Volcano Series brushless ESC are micro processor controlled and will work with all types of brushless motors. The Volcano Series brushless ESC can be used in airplanes, sailplanes, helicopters, or 3D helicopters. The controllers come pre-programmed and are ready to use when you receive them. Additional controller adjustments are available and can be accessed and adjusted with your transmitter and program card Features Specifications Instruction Manual Buy It Now ] Innovative Discharge Monitoring and Protection Design for real time battery pack monitor Multiple protection features: Low-voltage cut-off protection, over-heat protection, throttle signal loss protection 3 start modes: Normal / Soft / Super-Soft, compatible ... Read Full Story

This Cable TV amplifier design has 5 outlets. This amplifier boosts the TV cable signal with 18dB before the signal is split into 5. The design is based around a MAR-6 MMIC . This Integrated Circuit amplifies DC to 2GHz with about 18dB. The CATV distribution amplifier circuit is built on a piece of double sided circuit board with one trace cut out with a sharp hobby knife. It is housed in a standard metal housing, that holds the 6 F-connectors for the HF. A 7805 is used to stabilise the electrical power. The electrical power (8..30 VDC - 50mA) enters the housing via ... Read Full Story

This circuit is a series connected voltage booster . It is designed around two blocking oscillators in parallel with a single inductor core in common. The oscillators are locked together by virtue of their using the same core. The PNP blocking oscillator connects and disconnect the positive power supply to the inductor and the NPN blocking oscillator connects and disconnects the negative supply to the inductor. Voltage Boost Circuit In order for the oscillators to run, a diode, D3, needs to be placed across the LED (D4) to power the circuit while current builds up in the inductor. When the transistors turn off, the ... Read Full Story

Rangkaian Pengatur Temperatur Kipas angin Parts: P1_____________22K Linear Potentiometer (See Notes) R1_____________15K @ 20°C n.t.c. Thermistor (See Notes) R2____________100K 1/4W Resistor R3,R6__________10K 1/4W Resistors R4,R5__________22K 1/4W Resistors R7____________100R 1/4W Resistor R8____________470R 1/4W Resistor R9_____________33K 4W Resistor C1_____________10nF 63V Polyester Capacitor D1________BZX79C18 18V 500mW Zener Diode D2_________TIC106D 400V 5A SCR D3-D6_______1N4007 1000V 1A Diodes Q1,Q2________BC327 45V 800mA PNP Transistors Q3___________BC337 45V 800mA NPN Transistor SK1__________Female Mains socket PL1__________Male Mains plug & cable R3-R4 and P1-R1 are active as a Wheatstone arch in which R3-R4 accomplish a anchored two-thirds-supply "reference" voltage, P1-R1 accomplish a temperature-sensitive "variable" voltage, and Q1 is acclimated as a arch antithesis detector. ... Read Full Story

Portable Guitar Amplifier Circuit Parts: R1______________22K 1/4W Resistor C1______________10µF 25V Electrolytic Capacitor C2_____________100nF 63V Polyester or Ceramic Capacitor C3_____________220µF 25V Electrolytic Capacitor IC1__________TDA7052 Audio power amplifier IC J1,J2__________6.3mm Stereo Jack sockets (switched) SPKR___________8 Ohm Loudspeaker (See Notes) B1________________9V PP3 Battery or 3V Battery (2 x 1.5V AA, AAA Cells in series etc.) Clip for PP3 Battery or socket for 2 x 1.5V AA or AAA Cells Portable Guitar Amplifier Technical data: Max output power: 1.5W @ 9V supply - 8 Ohm load; 60mW @ 3V supply - 8 Ohm load Frequency response: Flat from 20Hz to 20kHz Total harmonic distortion @ 100mW output: 0.2% ... Read Full Story