OpenBCM V1.07b12 (Linux)

Packet Radio Mailbox

DB0FHN

[JN59NK Nuernberg]

 Login: GUEST





  
KB2VXA > TECH     12.08.04 07:13l 33 Lines 1375 Bytes #999 (0) @ WW
BID : 26258_WT3V
Read: GUEST OE7FMI
Subj: Re: ZS6CFC > car batts
Path: DB0FHN<DB0FOR<DB0SIF<DB0EA<DB0RES<ON0AR<VE2PAK<N1UAN<W1GMF<W1ON<
      W1ON-5<K1UOL<K1UOL<WX1CT<WA2PNU<KC2COJ<WT3V
Sent: 040810/2042 26258@WT3V.#CNJ.NJ.USA.NOAM $:26258_WT3V
From: KB2VXA@WT3V.#CNJ.NJ.USA.NOAM
To  : TECH@WW

Hi Sten and readers,

Setting the "fumblemechanics" aside, I'll address the one important part 
of your bull. You're right even if your wording is confusing, never run 
the engine with the battery disconnected! To clarify, you say the 
alternator output is regulated, that's the job of the regulator. (;->) 
The key part of it is any voltage regulator needs a reference source, the 
regulated supply running our Ham equipment uses a zener diode. 
The vehicle regulator uses a convenient source, the battery. It's 
characteristics are such as the terminal voltage never rises above about 
14 volts no matter how much current you throw at it, sort of a heavy duty 
zener. Without reference voltage the output of any regulator soars to the 
input value, in the case of an alternator it's typically 25 volts. The 
reason for this is to allow proper voltage drop across the pass 
transistors providing proper regulation of the output, Ohm's Law. 
Naturally this voltage will quickly ruin the vehicle's electrical system.

73 de Warren, KB2VXA@WT3V.#CNJ.NJ.USA.NOAM
Powered by JCP&L atomic energy.

E-MAIL: kb2vxa@swissinfo.org

**************************************
Preserve the integrity of our network,
stop Internet forwarding!
**************************************

Message timed by cesium laser: 20:51 on 2004-Aug-10 GMT



Read previous mail | Read next mail


 16.03.2025 21:19:23lGo back Go up