13 V/2 A PSU for handh0eld6 rig3s

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< Power Electronic ~ 13 V/2 A PSU for handh0eld6 rig3s

eric

Posted: Mon Oct 09, 2006 11:51 pm Post subject: 13 V/2 A PSU for handh0eld6 rig3s

Site Admin Joined: 01 Jan 1970 Posts: 311

Design by N.S. Harisankar VU3NSH
This compact 13-V/2-A power supply for ham radio rigs and other
VHF/UHF portable PMRs is based on the STR2012/13 voltage
regulator IC from Sanken Electric Co. Many power supplies for
handheld amateur radio rigs are based on the LM317, LM350 or
even the good old LM723. Unfortunately, these regulators are
invariably associated with a fair number of external components,
while we should also consider design factors like total power dissipation
and input voltage range.
The STR is a hybrid power IC containing a switch-mode power
supply. It supplies a fixed output voltage and accepts relatively high
input voltages. Another advantage is its relatively high power dissipation
rating. The 5-pin STR is available for 5.1 V, 12 V, 13 V,
13

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