Transformerless circuit with 220V AC LED lamp is working . Half -polar LEDs 1 uF capacitor to run the transformer is used instead . High- voltage transformerless all LEDs are connected in series to study the drawing of printed circuit boards have prepared accordingly during installation of the LEDs + – do not confuse ends…
Now I think about it in my head a lot of trouble while this circuit how I applied stunned quite a time now , huh now ha then say a kind I have not shared this day kısmetmiş Anyway my point was very useful to practice a lot of experience earned now DC DC Converters…
Power supply circuit 0 … 400v voltages setting 22mA … 600mA (maximum 1A) from the current setting is able circuit TCA785 phase control integrated on the more complicated but the voltage is high, the design for which we are accustomed system different from the tl081 opamp to feed used dcdc converter on the market have…
3w power led drive prepared for the circuit uc3842 and uc3845 PWM control ICs prepared with two circuit diagrams ™ connectivity first circuit uc3842 used two LEDs connected in series, the power MOSFET is irlz24n other 3w LED driver circuit, the u3845 is controlled by 10 LEDs connected in series in this circuit that extend…
LM317T based on the 1.3V 30-volt 0-5 amp regulated power supply circuit before I saw it but only scheme because not want to share recent search came at the same circuit made I did see 2 version LM317T regulator IC of the transistor with a power Upgrading lm301 opamp with current control kt818 is done…
Alternative to a zener diode circuit adjustable Zener. According to the current PNP transistor where you will use a more powerful zener diode can be achieved. voltage adjustment every 10k worth of pot 1 and is increasing. Adjustable ZENER Schematic
1400w 12v DC to DC converter circuit dc voltage converter circuit as symmetrical +-70V dc is turning sg3525 SMPS PWM control IC is used on the floor. In practice, the output transformer used optionally divided into two parts to meet more precisely 1400w power single core can also be used if nüvebulun. Primary and secondary…
SMPS circuit have 3 version of the 700w (+-50v 50khz), 800w (+-42v 60khz) and 900w (+-70v 50khz) circuit diagrams for the same smps pwm control output is used to drive the integrated MOSFET sg3525 ir2110, but according to some of the values are different, the forces of the output of the SMPS circuit voltajlarına has…
Before electronic load, dummy load circuits shared but someone based on the microcontroller was very simple, this circuit on the circuit design of very high quality taken in-between:) to display current Icl7107 (Led Display A-D converter) are being assembled under the integrated printed circuit board used to 10mA. 20A-adjustable load current. Note: the circuit diagram…
With this circuit current limitation can set digitally uln2003a. by the combination of resistors R-2 was used. proportional to the binary number value of the current limiting is set. mje3055 2amp load or stronger used transistor.. Current Limiting Schematic