LMH/ Texas Instruments Linear Voltage Regulators LMH/ Voltage Regulator datasheet, inventory, & pricing. The LM/LMC is a voltage regulator designed prima- rily for series regulator applications. By itself, it will supply output currents up to mA; but external. The LM is a monolithic integrated programmable voltage regulator, assembled in. lead dual in-line plastic package. The circuit provides internal current.
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LMH datasheet & applicatoin notes – Datasheet Archive
Don’t know why your reply got downvoted, definitely of value. Spehro Pefhany k 4 ln723h Q1 can provide as much base drive as you want in fact, as there is no series resistor between Q1 and the base – this is, if not a design “error”, then at least a design weakness.
There are two aspects to this. To get more output voltage you need to use “booster” transistors.
But if your power supply is very old, and you have replaced the IC. I’m trying to troubleshoot a delinquent power supply I have.
I tested it with a 5-ohm power resistor. I suspect you’ll find a collector-base short on Q4.
LMH/ from Texas Instruments
I’ve attached the circuit diagram. The LM internal error amp has 6. All understood to mean “within the legitimate bounds of the LM’s capabilities”. Secondly, xatasheet to those who feel this question wasn’t researched enough nor novel. If you wanted current limit the arrangement used was simple obvious and standard fare.
So how do the transistors function? About 15 years ago I worked for a HV power supply company.
This has led me into investigating the schematic, but try as I might, I can’t make heads nor tails of what’s going on. BUT the sinks current to ground as it turns on although you can invert the error amp sense and use a pullup resistor to get over this and-but the only provides datqsheet max.
If things go wrong and Vout is not as high as it should be due to a failure somewhere then Q1 tries to tear the arms off the ie apply too much base voltage – if the is tougher than Q1 then Q1 may lose instead. The article was published lm723n the August edition of 73 Magazine, and may be viewed at archive. Above formula gives this graph. It is available as a pin DIP from everyone.
The common zero point of 6. The output transistor 10,11 drives the external pass element.
Also, Q1 is a transistor – which I’m sure was satasheet a mistake.
Votes to close are disappointing. SO Texas Instruments part: This page has been accessed 30, times. As for the zener diode question I’m sorry that wasn’t very clear.
I can’t seem to replicate this behaviour so I suspect the interaction datasehet the transistors is super important. Also able to use as either linear or switching type regulator. I’m quite lost after spending some time monkeying with this, so any direction is greatly appreciated. Hard to know what to conclude from this: I think that my pinout is correct used http: I’m especially unclear exactly how the transistors operate, as their connections aren’t clear to me.
I haven’t finished the functional description above but the added material should give you a very good insight into operation. Datwsheet you want to abandon this cct but keep it working If you can tolerate 1. This page was last modified on 19 Aprilat