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Regarding the transdormer being faulty – it’s rare for them to fail but shorted turns in any datashet will prevent the circuit oscillating whilst not significantly changing DC conditions.

My concern is whether 8v is enough to switch this transistor and Z1 voltage of 0. How can the power consumption for computing be reduced for energy harvesting?

I will check reducing R7 value whether it helps I am worried why the transistor is not switching although it has a base voltage of 8v. Heat sinks, Part 2: PV charger battery circuit 4. I have replaced C4 which didn’t help.

First you need to change Datwsheet.

Check also for a bad solder joint on the emitter to R4 connection path. I got only this from the shop when I asked for S.


I am sure the problem is in primary side and i don’t see any bad solder joints. If you really have more than 1. Digital multimeter appears to have measured voltages lower than expected. The new transistor also doesn’t switch. Dec 248: How do you get an MCU design to market quickly? Datzsheet to Emitter voltage is v.

Any analysis from you experts will be helpful. PNP transistor not working 2. Now I have tried removing Z2 and Base gets 11v.

I can see the max voltage is 9v for this transistor. The transistor is not switching even in 8v means, does it needs more jtc.

13001-A Datasheet, Equivalent, Cross Reference Search

Equating complex number interms of the other 6. It’s better to share your questions and answers on Edaboard so we can all benefit from each others experiences.

Hierarchical block is unconnected 3. Try to modify R7 down to K, this time using a good transistor the light bulb must be turned on A small test i have conducted is I get the instant output when i manual switch the transformer by keeping the dayasheet between collector and emitter. I get 8v at base. You may try and change the D1 diode, C1 capacitor….


Datasheets history of inquiries : Datasheets for Electronic Components and Semiconductors

Also R10 is good and I am able to glow a 60W bulb from collector and emitter of transistor. Base to Emitter voltage is 8. What 130001 the function of TR1 in this circuit 3.

Also I have tried removing Z2 and Base gets 11v. I tried adding K in parallel across R7 with no effect.

KTC SA datasheets | Datasheet | Search IC datasheets | IC DATASHEETS SEARCH BATABASE

Distorted Sine output from Dataxheet 8. CMOS Technology file 1. With all these actions tried already I am not sure what else remains: Also did you check for any short-circuit in the secondary section?

Battery Charger using LM 0. There is no feedback voltage and secondary output. A DVM will not tell you the truth when measuring in the presence of an AC component and this circuit is a single transistor oscillator so the signal will not be pure DC.