Re: Voltage sensing diode
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This is good to know.
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I found the reference that says VBAT = 1.65 to 3.6 V >> so if the IP5303 cuts out at 3V, VBAT will see 2.4V (nominally), which is well above 1.65. I was thinking that the IP5303 would go lower before powering down. Is vbat_offset the voltage drop across the diode? I miss having a local store where I could go to buy such simple things as diodes...now we must go to the web for a lot of things... 73 On 2019-10-31 09:04:-0700, you wrote:
On Thu, Oct 31, 2019 at 05:24 PM, Rich NE1EE wrote:not sure when the IP5303 quits) to 3.3-0.6 = 2.7V, which, if I recall the 1.5VYesterday I implemented a new command "vbat_offset" to allow calibrate battery voltage measurement for NanoVNA. Also I tested battery for two full cycles with voltage measurement (with external precise voltmeter). --
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Rich NE1EE