Two simple analog stabilizers. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Two simple analog stabilizers. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Surge Protectors

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Two simple analog stabilizers

In, mA	Uin,V	~Uin, mV	Uout, V	~Uout, mV	Kstab.
50	19,52	350	10,91	13	27
100	18,96	700	10,82	30	23
200	17,85	1300	10,68	80	16
300	16,86	1800	10,57	150	12
400	16,14	2400	10,46	240	10
500	15,28	2600	10,25	470	5,5

In, mA	Uin,V	~Uin, mV	Uout, V	~Uout, mV	Kstab.
50	18,86	600	12,24	<0,5	> 1000
100	18,28	1000	12,22	1	1000
200	17,22	1500	12,19	3	500
300	16,24	1900	12,18	6	317
400	15,74	2450	12,16	9	256
500	14,90	2800	12,10	21	133

Voltage stabilizers for powering radio equipment are those circuits that any radio amateur makes dozens of, repeatedly and successfully inventing the "bicycle". Here I compare two circuits made of the same parts and powered by the same rectifier. Stabilizer 1 is slightly more economical due to the lack of R2. In all other respects, stabilizer 2 is an order of magnitude better! Scheme 2 is a modified scheme of an industrial network adapter from which the details that provide primary switching are removed as unnecessary, because. I divided the reference element into two VD1, VD2 and the launch occurs automatically.

The voltage deviation depending on the load current for the 1st circuit is 10,58+/-3%, and for the 2nd - 12,17+/-0,53%.

Publication: shustikov.by.ru

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