July 17th, 2012
As you can see briefly in the diagram (click to enlarge), this basic fire alarm system circuit design consists of control panel (A), initiating device circuit field wiring (B), small supervisory current flowing through EOL resistor (F) (C), alarm initiating device contact (D), voltage sense circuitry (E), Test Point Zone Vz (G), and supply voltage Vs (H). [...]
August 17th, 2012
Brushless DC Motor Circuit can be completed in TDA5140A Datasheet. [...]
August 15th, 2012
A: Apply momentary ground to reset hours to zero.
B: When using the MTH6 with inductive loads, we recommend installing a suppression diode across all coils.
C: Terminals 4 and 8 may be grounded on negative ground power supply.
D: Alternator must be equipped with a tach terminal (auxiliary AC terminal).
E: Connecting full battery potential to terminal 9 can cause damage
to the switchgage. Shutdown circuit is rated for 300 mA continuous. Circuit grounds out at set point. [...]
August 14th, 2012
The laser driver circuit diagram shows the schematic of an IC-NZN application, an all-purpose laser driver circuit. It operates from 3.3 to 5.5 V and can drive N, M, and P-type laser diodes with or without monitor diode. The latest generation of all-purpose integrated laser driver solutions supports switching frequencies up to 155 MHz and laser currents up to 300 mA. [...]
August 10th, 2012
The phase shift oscillator works in such a way that if the amplitude of the inverting amplifier is not high enough the system will continually attenuate the signal until the amplitude is zero, it was therefore decided to change the amplification power of the inverting amplifier. [...]
August 8th, 2012
NCP1034 known to be high voltage, high power and high efficiency buck converter. A voltage mode PWM controller for a high synchronous buck. According to the datasheet, this buck converter features low output voltage ripple, ceramic capacitors, over current protection, and under voltage protection. [...]