Power supplies

03/05/2017 - 19:20
The first problem which when designing any devices face and beginning and skilled radio fans — is power supply problem. In the present chapter various network power supplies (micropowerful, average capacity, powerful) will be considered. At a choice and development of a source...

Phase regulator of capacity

02/24/2017 - 16:46
For adjustment of capacity many circuits are created, but radio fans continue experiments in search of the optimum. Existing circuits of PHASE adjustment of capacity, though involve with the simplicity, but possess one essential shortcoming - at change of mains voltage it is necessary anew...

Optronov not to be sorry!!!

01/27/2017 - 02:04
(c) klausmobile 2002 At each designer - the approaches, the receptions, the glitches and repeating from the project in the project standard bricks. That who saw at least some pages on this site, already something was evident. I will try to tell about the favourite bricks (in...

As it is correct to connect grounding

01/04/2017 - 00:46
Unreasoned grounding, as a rule, leads to perception the circuit of undesirable signals. To formulate a principle of appropriate grounding it is easy, but sometimes to follow this principle heavy. This principle can be formulated so: grounding on which the loading current to the power supply flows...

Indicator of deviations of mains voltage

12/28/2016 - 05:59
At a food of some radio equipment from a network of an alternating current it is necessary to watch stability of its tension and at a tension deviation over admissible norm either to disconnect equipment, or to change tension on it, for example, by means of the autotransformer. For the alarm system of deviations of the network...

Simple regulator of capacity (there is a printed-circuit board)

12/14/2016 - 20:18
The main advantage of regulators of capacity in which switching of trinistor occurs at the moment of transition of mains voltage through zero - small level of hindrances. To circuit simplification in these regulators apply step regulation of target capacity. In the device described below in...

SOS - a signaling device of disconnection from a network

12/01/2016 - 10:22
Unexpected shutdowns of mains voltage became one more (in addition to two known) the Russian trouble. The main thing in such situation - in time to learn about shutdown and to take measures - to pass to a reserve food (if there is a possibility) or it is simple to clean from the idle refrigerator...

The simplest circuits of power supplies for various equipment

11/29/2016 - 01:27
There are a lot of circuits on inexpensive element base. Power units, converters and so on. 1. The charger circuit from a storage lamp (it is dangerous to accumulators). 2. A voltage stabilizer on PT. 3. Sources of a stable current. 4. Current source. 5. Voltage stabilizer. 6. Source...

Protection of radio equipment of an overstrain

11/20/2016 - 22:58
At failure both linear, and the pulse stabilizers of constant tension executed on transistors or chips, target tension can become almost equal to the entrance (straightened) tension which is usually removed from the condenser of the filter of a food, established on...

Way of winding of toroidal power transformers

11/15/2016 - 18:00
Among radio fans toroidal transformers, as the least dimensional and massive use great popularity. But to each radio fan delivers many efforts their winding. Someone uses for this purpose shuttles, someone gives cores for winding to experts, I manage the simple...
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