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- Spectrum Analyzer • Measurement Receiver ➜
- A DC-199 MHz Spectrum Analyser 'VISIONARY' with Si4432
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- Levelmod - A DC to Daylight Microwave Powermeter
- Micro Smart Power Sensor - with AD8319, TMP101
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- Micromod - A 220 MHz Synthesizer with the Si570
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- Supermod - A 23.5 - 6000 MHz Synthesizer with the MAX2871
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- Power Supplies • Voltage Standards ➜
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- P-I-D and other Controllers ➜
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- Shield BHUMI : A Voltage Standard, programmeable
- CALC-DUINO, a simple Pocket Calculator Shield (MAX7219)
- CLOCK-DUINO, a clock, to be shown to my teachers :-)
- DCF-77 Synthesizer. With Arduino. Aka "TimeDuino"
- Shield LEO : SMS on Power down
- Shield NRVD : Dual UHF Power Meter
- Shield MARCELLA : Control your Laboratory Devices
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- Spectrum Analyzer • Measurement Receiver ➜
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- Power Supplies ⚡
- Calculations • Design • Design Examples
- Measurements • Characterisation (Noise, Ripple)
- Anything Supplymod (mostly using Arduino Nano Every)
- Anything PETH (no Microprofessor)
- PETH-6 Power Supply • ± 15 V, 100 mA
- PETH-6 Power Supply • +7.5 V, for Arduino / Genuino
- PETH-20 Power Supply • ± 15 V, 600 mA
- PETH-30 Power Supply
- PETH-40 B3 Power Supply ±15V, 1200 mA
- PETH-40-HAM Power Supply • ± 15 V, 1.5 A
- PETH-49 Power Supply • 1 ... 19 V, 2 A
- PETH-200V - High Voltage Power Supply
- PETH-581 Power Supply • Buck Conv. with Linear Afterburner
- PETH-1074 Power Supply • Step-Down with an LT1074
- PETH-8093 Power Supply • Step-Down and linear regulation
- PETH-9910 Power Supply • 8 ... 16 V, 10 A
- Anything High Voltage
- Anything else
- AC Power Source. 310 V, 2 A with an Arduino Nano Every, SCPI
- Amplifiers • Calculations
- Audio Amplifier ➜
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- Low Noise Amplifier ➜
- Measurement Amplifier ➜
- Universal Amplifier, using Mini Circuits Components ➜
- SOT-115 J-9 Power Modules ➜
- VHF/UHF Power Amplifier with the BGD 804 - 860 MHz, 24 V
- VHF/UHF Power Amplifier with the BGY 588N - 550 MHz, 24 V
- VHF/UHF Power Amplifier with the QPA 3314 - 1794 MHz, 24 V
- VHF/UHF Power Amplifier with the QPA 3316 - 1794 MHz, 24 V
- VHF/UHF Power Amplifier with the TAT 8888 - 1000 MHz, 24 V
- VHF/UHF Power Amplifier with the RFPD 3580 - 1218 MHz, 24 V
- Even Bigger Power Modules ➜
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- Opamp Circuits • Knowledge
- Cascading OPAMPs For Increased Bandwidth
- Cascading OPAMPs For Zero Offset AND High Power
- Maximize Bandwidth for cascaded Opamps
- Slew-Rate Considerations
- Maximum Output Voltage vs. Frequency
- Choosing the right OPAMP to drive an ADC (SAR ADC)
- Bipolar Voltage to Unipolar Voltage ADC Driver
- Unipolar Voltage to Bipolar Voltage DAC Circuit
- Differential Amplifier
- Inverting Amplifier
- Inverting Comparator with Hysteresis • Schmitt-Trigger
- Non-Inverting Amplifier
- Non-Inverting Comparator with Hysteresis • Schmitt-Trigger
- Summing Amplifier
- Remembering Robert A. Pease, aka "RAP"
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- ADF 4350 Module
- A 100 MHz Reference Frequency Source, locked to 10 MHz
- A 100 MHz Reference Frequency Add-On, DIL-28 Formfactor
- A 100 MHz Reference Frequency with 10 MHz OCXO
- A universal VCO Board - MC100EL1648DG and PGA-103+
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- The Mobile Emitter
- DDS Synthesizer - with AD9851, ≈70 MHz
- Low Noise DDS Daughterboard - with AD9859, ≈ 160 MHz
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- How to measure Mixer Characteristics
- A Mixer Tinkerboard for those ADE-xxx from MCL
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- Universal Frequency Converter with the Si564
- A broadband Phase-Shifter for IQ Mixing Applications (ECL)
- An RF Phase-Shifter for IQ Mixing Applications (LVC)
- Transmod, shifts 6.8±1 GHz to 1.0±1 GHz.
- UpConverter for SDR, Callisto e.a.
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- Noise • Introduction
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- DIY Noise Source with 2 x GVA and 2 x PAT - ENR : 12.0 dB
- DIY Noise Source with 2 x GVA-81+ - ENR : 21.43 dB @ 1.0 GHz
- DIY Noise Source with 3 x GVA-81+ - ENR : 24.44 dB @ 1.0 GHz
- DIY Noise Source aka Ghettoblaster 555
- EMI Powerline Schnüffelstück
- How to Measure the Noise Floor of Your Spectrum Analyzer
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- Quantumoptics Stuff 3599
- QO Basics - Photodiode Things ➜
- Photodiodes for Physicists
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- LED's ... working like Photodiodes
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- Diodemod : for DC Characterization of Photodiodes
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- Magnetic Field Probe up to 3 GHz
- Prescaler :2 :4 :8 :10 :20 :40 :80 MC12093 MC12095 MC12080
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- 8 GHz Prescaler :80 - :640 with the HMC434 + MC12080
- Resistive Power Split, DC - 3000 MHz, 9.5 dB, 3 Way
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- Ground-Breaker
- Quantum Computer Arithmetic Unit : Adder
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PETH-317.php 5688 Bytes 04-03-2025 19:13:20
PETH-317
A small power supply for universal use.
This project describes a little power supply, based on a LM317, adjusteable from 1.25 to 30 V, delivering approx. 1 Amp.
Yet another nice to have building block :-)
The PETH-317 power supply - small but useful ...
✈ Circuit
The circuit consists of a bridge rectifier, build with 4 diodes (1N5062), then a storage capacitor 3300 µF, 35V (farnell
EEUHD1V332)
and finally the good old 'LM317'. The circuit is not that new or stupendous, but it is a handy circuit which should be in every library of building blocks.
✈ Downloads
✈ Performance
In order to test the performance, we built some of those circuits. We used the following equipment : LD-300 DC ELECTRONIC LOAD BY TTI,
FLUKE 8846 A to do the measurements. One voltage which is very often used is +5 V. The diagramm below shows the measured characteristic.
Step Response when current is increased from 100 mA to 1100 mA. When dissipating a lot of power, a heatsink mayst be adviseable.
Step Response when current is increased from 100 mA to 1100 mA. When dissipating a lot of power, a heatsink mayst be adviseable.
✈ Share your thoughts
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Ads or links to completely uncorrelated things will be removed.
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t1 = 7300 d
t2 = 279 ms |
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